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- Naked People Are Funny:
- Sometimes, jokes are made about Lily taking her diaper off.
- In "The Old and the Restless", Pop-Pop streaks, then tries to go skinny dipping.
- Named After First Installment: The pilot episode was titled "The Loud House" when it first aired, as the main place where the show's set. It was renamed "Bathroom Break" in reruns when the show ended up using its original title.
- Named After the Injury:
- A rare heroic example— Lincoln reads comics that involve a superhero with a sidekick named One-Eyed Jack, who wears an eyepatch. The name comes from the slang term for Jack playing cards that have only one eye visible.
- In "Suite and Sour", Lincoln mentions a ghost called the Footless Bellboy, who allegedly lost his feet before he died and can be heard thumping along.
- Recurring character Scoots (real name unknown) is so-called because she is confined to a mobility scooter. It's unknown as to why; "A Flipmas Carol" reveals that she was that way even in her youth.
- Named in the Sequel:
- In the pilot episode, all of the eleven Loud siblings are seen, but only Lincoln, Lori, Luna, and Lola are named. The series' first proper episode, "Left in the Dark", names Leni, Luan, Lynn, Lucy, Lisa and Lily, with Lana's name first revealed in the next episode, "Get the Message".
- The siblings' parents' names weren't given until later in the first season. The mother, Rita, had her name given in "A Novel Idea", while the father, Lynn Sr., had his given in "Overnight Success".
- For the first four seasons, Lynn Sr.'s father's first name was unknown and he was only seen in flashbacks. When he was finally seen onscreen in the Season 5 episode "Camped!", his name was revealed to be Leonard.
- Clyde's grandma was mentioned back in Season 1, but her name, Gayle, wasn't said until Season 5's "Resident Upheaval".
- Initially, Bobby and Ronnie Anne's father's first name was unknown, until The Casagrandes gave it as Arturo.
- In "The Boss Maybe", Scoots starts dating an unnamed man who's considerably younger than her. It isn't until "Resident Upheaval" that his name is given as Tyler.
- A newswoman voiced by Catherine Taber had appeared several times throughout the first two seasons of the show, but it wasn't until the Season 3 episode "Scales of Justice" that her name was given as
Katherine Mulligan. - Flip's real name, Phillip Phillipini, wasn't revealed until the Season 5 episode "A Flipmas Carol".
- Cheryl's surname was unknown since her introduction, even after the debut of her twin sister Meryl in Season 5, until the Season 6 episode "Save Royal Woods!" gave it as Farrell.
- Stella first appeared in "White Hare", albeit with only her hair and bow visible. She's not fully seen (or named) until "Be Stella My Heart".
- The Napoleon: Lola seems to be part this, part Spoiled Brat, as is Lynn. Particularly short in height? Yes. Acts big all the time, like being energetic or bossy? Also check. Yup, she qualifies.
- Narcissist: Lola. In "Undie Pressure," she continuously stared at herself in her compact mirror, and almost lost it while trying to go without looking at herself over the family bet.
- Nature Lover: Lana. She loves animals, is often playing outside, and likes to go to the park.
- Negative Continuity: Due to the series being very episodic and not having much of a continuity, episodes can become quite notorious for contradicting previous episodes. See the episode recaps for specific examples. Towards the end of Season 2 and onward however, this starts changing. Examples of this include Stella becoming part of Lincoln's gang after her introduction, Sid moving to the city and becoming Ronnie Anne's friend in season four, and relationships such as Benny and Luan or Sam and Luna actually progressing over time, not to mention the establishment of Lynn's table at the end of season three. Becomes averted as of Season 5 when the Floating Timeline is broken, having the siblings age one year, Lincoln now attends middle school, Lori leaves for college, and Lily now attends preschool and is potty trained.
- Nerd Hoard: Lincoln is a geeky boy who has a stash of comic books, including Ace Savvy (a playing card-themed superhero) and David Steele (a James Bond parody).
- Never Trust a Trailer: The trailer where Lynn brings a boy home while the other girls surround and chastise him for bullying Lincoln is from "Heavy Meddle". The boy is innocent since the bully is a girl.
- New Baby Episode: Subverted in "Baby Steps", where Clyde thinks his dads are adopting a baby and gets advice from Lincoln, but they're actually adopting another cat instead.
- Nice Guy: Out of the siblings, Leni, Luna, Luan, Lincoln, Lucy, Lana, and Lily are all usually this. Although they have their faults, like Luan's pranks and Lana's gross habits, they're very sweet people. Most often anyway.
- No Antagonist: The show doesn't have a clear-cut central antagonist, with most antagonists being one-off bullies or jerkasses.
- No Full Name Given:
- Pop-Pop's real name is Albert, and his sister's name is Ruth, but their surname (and Rita's maiden name) is unknown. When Rita married Lynn Sr., she changed her name to "Loud". Pop-Pop's friends, Seymour and Bernie, and his girlfriend Myrtle, also have unknown last names.
- Great-Grandma Harriet (who died before the events of the series) was either the mother of Leonard (Lynn Sr.'s father) or Lynn Sr.'s unseen mother. As such, it's unknown what her last name was, but it could have been "Loud".
- "Study Muffin" features Ms. Dimartino (whose first name is unknown) and Hugh (whose last name is unknown).
- Sue from "The Old and the Restless" has an unknown last name.
- Lynn Sr.'s best friend is named Kotaro, with an unspoken last name.
- Not Where They Thought:
- In the episode "Schooled!", Leni accidentally gets on the wrong bus and attends preschool instead of high school. When she gets there, she still thinks she's in high school, and even when she realizes the truth, she goes back there so she can bounce on the trampoline.
- In "One of the Boys", Lincoln initially thinks the interdimensional portal didn't work and he's still at home, but then he realizes that he's in a dimension where his sisters are now boys. At the end of the episode, he thinks he's gone home, but then he turns out to be in another dimension, where everyone has swapped genders including himself. Luckily, however, it turns out to be All Just a Dream.
- In "Tripped!", the Louds miss their bus and unknowingly enter a prison bus. Lynn Sr. and Rita realize what kind of bus it is after they find a pair of handcuffs.
- Nightmare Sequence: In "A Tale of Two Tables", Lincoln has a nightmare about staying at the grownup table.
- Nosebleed:In what is a rare, risky, yet bold example for Western Animation, it's a running gag during the first two seasons was that Clyde would experience these whenever he's around Lori:
- He has one in "Get the Message" when Lori is in front of him.
- He has one in "Chore and Peace" when he finds out Lori is back again with Bobby.
- He has two in "The Waiting Game" when Lori talks to him and Lincoln at the arcade. He realizes that he can stop the nosebleeds if he doesn't see, hear, or smell Lori.
- He has four nosebleeds in "A Fair to Remember". He has two when she talks to him, one when she hugs him, and one when he receives a gift from her.
- He has one in "Baby Steps" when Lori walks into the house just as he's about to leave.
- He has six in "Change of Heart", though one is from Lynn inadvertently nailing him in the nose with a frisbee.
- Nose Nuggets:
- Lana, being a tomboy into Filthy Fun, has a habit of picking her nose.
- All of the Loud brothers from "One of the Boys" also pick their noses, sometimes with their feet!
- In "One Flu Over the Loud House" Luan says "It's snot what you think!", and Lucy gets infected by Lily's snot bubble.
- Not Allowed to Grow Up: So far, there have been three episodes set on separate April Fools' Days, thus proving that at least two years have passed in-universe. Yet none of the characters appear any older, or are stated to have aged. The staff plans to avert this in Season 4. This is finally averted in Season 5 when the siblings are aged by one year.
- Nothing Is the Same Anymore: By Season 5, the Louds have aged one year, Lori no longer lives with the family and goes away to college, and Lily attends preschool, is potty trained, and now speaks full sentences.
- Not Me This Time:
- Lincoln's claim that starts the plot of "Sleuth or Consequences" is that, despite usually doing it in the past, this particular instance of the toilet being plugged isn't his fault.
- The April Fool's pranks in "Silence of the Luans" were surprisingly not done by Luan this time; it was Lily.
- Not So Above It All:
- According to Lola in the pilot, Lincoln, who's normally sensible, once read comics in his underwear on the roof.
- Lincoln's older sisters eventually decide to join him at the kids' table and have fun with their younger siblings, starting with the youngest of the five, Lynn Jr. Then, Rita flings peas at Lynn Sr. Lucy and Lisa also join in the food fight and laugh at Lana's armpit farts.
- Not So Stoic: Though Lucy and Lisa are mostly The Stoic, they can have reactions that are out of character for their personalities, and Lucy once got over-joyed in one scene.
- Not Used to Freedom: In "Frog Wild", Lincoln and Lana set some frogs free. They then realize that the frog don't know how to defend themselves against predators because they were bred in captivity.
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- Obsessive Hobby Episode: In "The Crying Dame", Lily cries a lot and so her siblings give her a singing toy fox which she plays with again and again. The song annoys the siblings, so they take the toy away but Lily gets sad again, so they cheer her up by singing the toy's song and dancing and (in Lincoln's case) dressing up as the toy.
- Obviously Not Fine:
- In the episode "Head Poet's Anxiety", Luan is jealous of Lucy but tries to suppress it and be happy for her. She does an obviously fake smile and when Lucy asks if she's okay, Luan says yes, even though she's clearly faking.
- "Hero Today, Gone Tomorrow" gives us another jealousy example— Lynn is trying to hide her jealousy of Margo, and when Lincoln asks if she's okay, she says she is— even though she is shouting and has an angry vein.
- Ocular Gushers: Happens whenever a character cries, their tears will spurt out.
- Oddball in the Series:
- Season 1 is the only season where Lincoln was the sole character of focus before the show transitioned to Ensemble Cast territory.
- Season 1 is also the only season where Rita and Lynn Sr. are The Faceless.
- Season 4 is the only season to date with no April Fools' Plot.
- "Fool Me Twice" is the only April Fools' Plot that is the second segment instead of the first.
- Odd Reaction Out:
- In "Study Muffin", when Hugh meets the pets, Charles, Cliff, and Walt nuzzle him, but Geo frowns.
- In "L is for Love", when it's discovered that the person to whom the love letter is addressed has brown hair, the blonde sisters, plus Lincoln (who has white hair) and Lucy (who has black hair) say, "Oh, dang it!", except for Lily, who says, "Ah, poo-poo!" (She was a baby at the time, and "poo-poo" was one of the few words she knew).
- In "Sofa, So Good", when the Loud siblings are relieved they got most of their furniture back, most of them sigh happily, but Lucy literally says, "Sigh".
- Ode to Family: The theme tune's lyrics are about how Lincoln has trouble with his ten sisters but loves them dearly.
- Offending a Foreign Country: Lincoln manages to get banned from Canada for saying that he doesn't want maple syrup on his pancakes.
- Official Couple:
- Lynn Sr. and Rita are married.
- Lori and Bobby are dating.
- Clyde's dads are married.
- Luna and Sam are dating.
- Offscreen Teleportation:
- Lucy has an uncanny ability to do this, often spooking the living daylights of whoever's nearby.
- In "Out on a Limo" when Lincoln returns home too late to take his sisters to the Burpin' Burger due to spending time with Lord Tetherby, he enters to find them outraged and slams the door shut; but when he turns around, the sisters are suddenly there on the porch.
- Oh, Crap!: When the girls discover Lincoln's sweet spot chart and confront him about it.
- Older Than They Look: Lynn, Luan, and Luna all seem to have a case of delayed puberty. Despite being 13, 14, and 15, respectively, neither of them have visible breasts. To boot, Lynn is around the same size as Lucy and Lincoln, who are 8 and 11, respectively, and has freckles; Luan wears braces, has a high-pitched, little girl voice, and is a Kiddie Kid, and Luna has Youthful Freckles.
- Old-Timey Cinema Countdown: In "One Flu Over the Loud House", the flashback that explains how Lynn and the twins got the flu is preceded by an old film reel countdown.
- Ominous Pipe Organ: Whenever Lucy jumpscares her siblings, either a crow caws or a short pipe organ chord plays. She and Luna also play one in the episodes "House Music" and "Tricked!", respectively.Luna: Ready to rock, oh, mistress of the dark. [starts playing her organ]
- The One Guy: Lincoln is the only boy in his family, not counting his father.
- One of the Girls:
- In "Roughin' It", Lincoln realizes that he frequently hangs out with his sisters and worries they're turning him soft, leading him and Clyde to take a boys-only camping trip.
- Leni's friend Miguel is a highly effeminate teenage boy who frequently hangs out with her and Fiona, as well as Leni's other friends Jackie and Mandee on occassion.
- One-Steve Limit:
- Lynn (Jr.) shares her name with her father. It's not a big deal, though, since everybody refers to Lynn Sr. as "(Mr.) Loud" most of the time, including his friends. Even Rita prefers using pet names.
- Girl Jordan is referred as such because there's already a Boy Jordan.
- There are two characters named Jackie: One of them is a teenager who's friends with Leni, the other is a young girl who likes beauty pageants.
- You also have Dana, another one of Lori and Leni's friends, and Dana Dufresne, a transgender pageant host formerly known as Donnie.
- A downplayed example, in that the names only sound identical: You have Bobby Santiago, Lori's boyfriend, and Bobbie Fletcher, a race car driver that Lana idolizes.
- If you count The Casagrandes, then you have Becky the teenage redhead from the parent show, and Becky the blonde wrestler girl from the spin-off. And that's not counting Becca, Sid Chang's mother.
- Only One Finds It Fun:
- In "The Crying Dame", only Lily likes the song of Fenton, the singing toy fox. Everyone else finds it annoying, including Lori, who liked him at Lily's age. When they take Fenton away, it causes Lily to break down in a Heroic BSoD.
- Most of the Louds find the "Princess Pony" comic too saccharine, even Lola who likes ponies and is in her Princess Phase. However, Lucy, despite being goth, likes it.
- In "A Bug's Strife", Aunt Ruth subjects Rita and all the Loud kids to 700 slides of the malls of the midwest. Leni is the only one to enjoy it.
- Only Sane Man:
- Lincoln is usually the show's voice of reason.
- Lori is often this as well, though she is quite condescending.
- Lisa is probably the second-to-most rational of Lincoln's sisters, for she is also not goofing off with them for the most part.
- Clyde becomes this to Lincoln in episodes where his plan flies off the handle, especially "Brawl in the Family".
- O.O.C. Is Serious Business:
- In "No Laughing Matter", Luan's siblings can tell that she's very sad when she isn't making jokes or pranking anyone.
- In "The Green House", Lincoln can tell things are going south when Luan (normally very cheerful) starts acting cynical and Lana (who's normally, as he puts it, the "Queen of Risks") starts being very safety-conscious and walking around in a hamster ball.
- In "Appetite for Destruction", Rita and Lynn Sr. are worried when their normally-sweet daughter Lily starts becoming destructive and growly. It turns out to be because she is constipated.
- In "ARGGH! You for Real?", Clyde's dads freak out and believe their son is having an "episode" when he gives up his belief in superstition.
- Out-of-Character Moment:
- Lucy and Lisa, who are known for being The Stoic, can act very (stereotypically) girlish.
- In "A Tale of Two Tables", Luan tells Lincoln not to tell jokes at the table.
- Out-of-Context Eavesdropping:
- In "Ties That Bind", Lincoln and his sisters hear their parents talking about getting rid of eleven ties and think they're thinking of getting rid of them.
- In "Baby Steps", Clyde overhears his dads talking about adopting another cat (Nepurrtiti) and thinks that they're adopting a baby.
- Out of Focus: Starting in Season 3, Lincoln's presence is more downplayed in favor of fleshing out the family and the supporting cast. There are a good chunk of episodes where he either plays a minor role, or is absent completely.
- Overly Long Name: A running gag is that Lincoln's plans tend to have very long names; something he himself always lampshades.
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- Pants-Pulling Prank:
- The montage of pranks Lincoln suffers in the beginning of "Heavy Meddle" includes a scene where his pants are pulled down while he's at his locker.
- Both Lynn and her male counterpart pants Lincoln in "One of the Boys".
- In "City Slickers," one of Lincoln's concerns about visiting Ronnie Anne in her new home in Great Lakes City is that she'll depants him on the Jumbotron in the city. It doesn't happen, as Ronnie Anne merely settles for depantsing Lincoln in a less crowded place and leaving him with a photograph of it as a souvenir.
- Parental Title Characterization:
- Lisa calls her parents "Mother" and "Father" because she's very serious and tends to use formal terminology.
- Liam calls his father "Pa" because he lives in a farm, so he uses stereotypical "country bumpkin" slang.
- Pep-Talk Song: In the fifth season opener "Schooled", Lincoln encourages his friendship circle they'll make it through middle school together just fine with the song, "We Got This".
- Periphery Demographic: There appears to be one for Blarney the Dinosaur, if Clyde showing up to the Blarney movie in cosplay and referring to himself as a "Blarneydune" is anything to go by.
- Perpetual Frowner:
- Lucy is definitely this, but knowing her, what did you expect? She's a goth girl, after all. She can be happy on several occasions, though.
- Lisa is also usually seen frowning whenever she appears on-screen. Granted though, she is among the more mature Loud siblings. However, she can also be very happy, albeit more often than Lucy.
- Walt nearly always has an angry expression.
- Phoneaholic Teenager:
- Played straight with Lori, who is often on her phone (usually texting or talking to Bobby; although it's implied that she was like that since she was a baby).
- Downplayed with Leni, who likes her phone but isn't extreme with it.
- Averted with the other teens who don't often use phones (despite being shown to individually have them in "Sitting Bull").
- Inverted with Lily, who is a baby and seems to like phones.
- Pint-Sized Kid: Some of Lincoln's friends (sans Clyde) are the same height as toddlers despite being in their pre-teens. Although Rusty and Stella are actually quite tall for their age.
- Plain Palate:
- Lisa invented "kelp leather" which is tasteless but provides the right nutrients. However, she does like candy (despite worrying that it'll affect her blood sugar) and is disappointed in "The Mad Scientist" when the scientists give her flavourless cubes and draws the line at injecting nutrients into her bloodstream.
- In "The Old and the Restless", Sue tries to invoke this by telling the residents of the old folks' home to eat plain food because it's easier to digest. When Lincoln reminds Pop-pop that his digestion is perfect, he eats chili instead.
- Platonic Valentine: From the promotional videos:
- In one, Ronnie Anne and Sid decide to have a "Gal-entine's Day", spending Valentine's Day together as friends. Lincoln then decides to have something similar called a "Bro-entine's Day" with his best friend Clyde.
- In another, Lincoln gives Valentine's candy away to his sisters and his best friend Clyde.
- Playing Card Motifs:
- Ace Savvy and One-Eyed Jack are themed after playing cards, with Ace having a signature pose of showing out a deck of cards.
- In "Pulp Friction", for the Ace Savvy comic that he and Clyde submit for a fan contest, Lincoln creates a number of characters based on his sisters and people he knows about, most of whom are named after a type of card or a related term associated with playing cards. In particular, the ones based on the sisters are summoned by Ace in the comic through a deck, and with Ace, Jack and later Wild Card Willy, are jointly referred to as the "Full Deck" or "Full House Gang".
- Playing Sick:
- In "One Flu Over the Loud House", Lincoln decides to pretend he's caught the flu to "blend in".
- In "Gown and Out", Lola pretends to be sick to get out of a pageant because she doesn't want to lose.
- In "A Bug's Strife", Lynn Sr. feigns a cold or flu-like bug to get out of visiting Aunt Ruth. His family falls for it, so they think he's delirious when they come home and he's tired and the house is a mess (actually, he wore himself out and trashed the house while chasing a bug).
- Plot Allergy:
- In the licensed game "Summer School", Clyde claims he's allergic to bats, dogs, canaries, hamsters, lavender essence... and cats, which is weird, because he's not actually allergic to cats and he has no reason to lie.
- Lana is allergic to rhubarb.
- The licensed comic Ultimate Hangout reveals that Clyde is allergic to geese, and he gets his dads' attention by making himself sneeze with goose feathers.
- Plot Archaeology: Leni spends the events of the Season 1 episode "Driving Miss Hazy" trying to obtain her driver's license. After failing twice (in addition to having already failed twelve times prior to the start of the series), she doesn't try again until "Driver's Dread" in Season 6, where she finally succeeds.
- Plot-Relevant Age-Up: The Louds all age one year as of the fifth season premiere, thus breaking the show's Floating Timeline.
- Police Code for Everything: A running gag is for Lincoln to call Clyde on their walkie talkies and give an emergency code, for example "Code Aquamarine." Clyde will respond by clarifying what that code means, which is always for something very specific, in this case, trying to do twelve loads of laundry at once in order to make time to go to an amusement park and breaking the washing machine.
- Poor Communication Kills: The ending of "Washed Up" has Lily discover the Lake Eddy monster Plessy, which is what Lincoln convinced Lucy to hunt for in the beginning; when she tried to tell Lincoln about what she saw, he misinterpreted her as wanting to go back to the island, much to her annoyance.
- Poorly Disguised Pilot:
- "The Loudest Mission: Relative Chaos" seems to be set for one with Ronnie Anne as the central character outnumbered 10 to 1 with her brother, mother, and extended family. There are many parallels of Ronnie Anne's position with Lincoln's in his family, including the hall closet being converted into a bedroom and Lincoln even explicitly teaching her to break the fourth wall as a way to cope with such a large family.
- The Season 4 "...With the Casagrandes" miniseries takes this a step further. The Louds do not appear in these episodes at all note and the plot revolves around Ronnie Anne meeting a new girl who is set up as the Clyde to her Lincoln and getting said new girl's family to move in at the Casagrandes' apartment. Even the structure of the episode feels different from a standard Loud House episode.
- Pop-Culture Pun Episode Title: Nearly every episode outside the half-hour specials has this, though it has become less common in later seasons. Some specific examples include "Pulp Friction" and "Breaking Dad".
- Potty Dance:
- In the pilot, Lincoln squirms a bit while waiting outside the bathroom as Lucy recites her poem.
- In "In Tents Debate", Lincoln does a potty dance when the beach girls form a line for the bathroom to convince him not to vote for Dairyland.
- In "Mall of Duty", the twins do a potty dance when they (along with Lucy and Lisa) need to pee. Lisa squints without dancing, and Lucy remains her usual, stoic self.
- In Issue #2 of the comic in the story "Traffic Jam" the Loud kids except Leni are waiting in line for the bathroom and the twins, Luan, and Lucy are visibly squirming.
- Potty Emergency:
- The pilot short involves Lincoln trying to make it to the bathroom at the other end of the hallway to pee, but has to tend to his sisters' mischief. He's briefly deterred when Lori beats him there, but he ends up chasing her out with one of Lily's dirty diapers.
- In "In Tents Debate", to get Lincoln to see the downsides of spending the Loud Family's summer vacation at Dairyland, Team Beach (Lori, Leni, Lucy, Lola, and Lily) stands in front of the bathroom when he has to take a leak to simulate having to wait in long lines at the park. When Lincoln finally gets there, he finds that the toilet is "Out of Order", so he settles for going in the shower.
- A deleted prank
◊ from "April Fools Rules" had Lincoln get up from bed surrounded by numerous cups of water, thanks to Luan. In order to exit his bedroom, he needs to drink all the cups of water. When he finishes all of them, he opens the door to find more cups in the hallway, meaning, he has to drink those as well. By the time he finishes all of them it is clear he is desperate to go and when he finally gets to the bathroom door to use the toilet, the knob comes off, much to his despair. - Lynn has one while at the gas station in "Raw Deal" as a result of her fortune being about her patience being tested.
- Powder Gag:
- "Band Together": Several characters get pranked with glitter bombs in their faces.
- "Tough Cookies": When Liam's cow kicks up the conveyor belt to a speed impossible to match by the kids, their efforts wound up producing a large cloud of flour. When it disperses, everyone is caked in the stuff.
- Power Outage Plot:
- In "Left in the Dark", Lincoln tries to distract his sisters from the TV, but when he finally succeeds, the power cuts out, so he and his sisters have to brave the dark basement and get the power working again.
- Lights Out, a Licensed Game, is about the power cutting out in the Loud house and you play as Lincoln trying to get to the fuse box and fix it before his TV show ends.
- Powered by a Black Hole: In "The Mad Scientist", Lisa invents a Time Machine that involves both a black hole and a wormhole in its construction.
- Practically Different Generations: The Loud family have eleven kids, with the oldest and youngest ones (Lori and Lily, respectively) having an age difference of at least 16 years. Although, the kids are pretty evenly spread apart, so most of them have at least one similarly-aged sibling (for example, the five oldest kids are only a year apart in age each).
- Prank Punishment:
- In "Cover Girls", after the Loud kids disguise themselves as each other for a video chat with Pop-Pop (It's a Long Story), their parents punish them by making them spend the rest of the day dressed as the sibling they're pretending to be at that very moment, which put a snag in their plans for the day. Lincoln (dressed as baby Lily) thinks he got off easy, since all he's doing to do is watch TV with Clyde... only to find that he invited their entire class to join them.
- In "Fool Me Twice", the Louds punish Luan for her over-the-top April Fool's pranks by pretending that they're moving house.
- The Prankster: Some of Luan's pranks are very elaborate, such as wrapping the whole house like a gift.
- Precocious Crush:
- Clyde has a huge crush on Lori. Due to being 11 years old, though, he is often paralyzed whenever he is around her.
- All of the younger sisters developed a crush on Lincoln's tutor Hugh in "Study Muffin".
- Lincoln and the rest of his male classmates have a crush on his teacher, Ms. DiMartino.
- Prejudice Aesop: The episode "Lincoln Loud: Girl Guru" has Lincoln trying to give advice about girls only for it to fail miserably, the moral being that girls and women are just as varied as boys and men.
- Pretend We're Dead: Parodied in "One Flu Over the Loud House": Lincoln decides to pretend to be sick to avoid his sick sisters, because he's comparing them to zombies and has seen this trope in zombie movies.
- Pretending to Be One's Own Relative: The siblings often dress up as each other (and sometimes their parents) in order to fulfill some goal:
- In "Toads and Tiaras", Lana dresses up as Lola to impersonate her at a pageant.
- Both twins dress up as each other multiple times in "Sister Act".
- In the episode "For Bros About to Rock", Lincoln and Clyde are thrown into the mall jail. Lincoln's big sister Luna dresses up as their mother Rita to try to bail them out.
- In "Cover Girls", Lincoln's sisters go off to several different places, so he dresses up and pretends to be them on a video chat with his grandpa. Eventually, all the Loud siblings end up dressed as each other.
- In "Suite and Sour", when the kids put on a play for their parents to show them why they should visit the spa instead of Aunt Ruth's, Lincoln dresses up as Aunt Ruth, Lori as Rita, and Lynn Jr. as Lynn Sr.
- In "Job Insecurity", the siblings individually dress up as Lynn Sr. while preparing for an interview.
- In "Change of Heart", Leni dresses up as Lori to get Clyde to practice talking to Lori without getting wired. Then Lori sees all this and, thinking Clyde's affections are now pointed at Leni, decides to return the favor by dressing up as Leni.
- Leni dresses up as Lori again in "Don't You Fore-get About Me" to get Lori kicked out of Fairway.
- In "Season's Cheatings", Lincoln dresses up as Rita to convince Lori to get him a Rip Hardcore backpack, and when that doesn't work, he dresses up as Lori to get Luan to do the same.
- Princesses Prefer Pink: While not a real princess, Lola often pretends to be one, and she wears a pink dress.
- Princess Phase: Lola seems to be going through one; she's nearly always dressed as a princess.
- Prone to Vomiting: Downplayed for Lincoln. He gags a lot when he's grossed out but doesn't generally vomit unless he's riding on the teacup ride (even though more extreme rides don't seem to bother him) or if he swallows something weird (even if it wouldn't generally make someone sick, like when he ate a dusty bagel).
- Prophecy Twist: In "Raw Deal", Lucy tries some fortune-telling cards, which predict something for all her siblings except for Lily (who, at the time, was only a baby and thus was likely too young to understand any fortune, so Lucy didn't bother to predict something for her). A number of them come true, but in different ways than expected:
- Lori's prediction was that she'd go on "a long trip" — she ends up tripping on spilled oil.
- Leni's prediction was that she'd "fall in love" — she ends up finding some shoes she loves. Lampshaded when Lisa calls this "hyperbole".
- Luan's prediction was that she'd be "blown away" — she literally gets blown away (by an air hose).
- Subverted for Lincoln's prediction — it was that he'd face "tragedy", so he didn't do any activities on the trip out of paranoia. At the end, he's okay but he feels that he kind of did face tragedy, since he missed out on all the fun... but then, he sees a geyser that he enjoys, meaning the prophecy was completely wrong after all.
- Lana's prediction was that she'd become "filthy rich" — she ends up finding a dollar in the bathroom that was Dropped in the Toilet.
- Lola's prediction was that "the universe would open up new doors" for her — a man named Mr. Universe literally holds the door for her.
- Lucy eventually predicts that "the end is near" — but in this case, the "end" is simply the end of the episode.
- Pun:
- Luan often makes puns.
- In "A Tale of Two Tables", Lana and later Lincoln ask, "Do you like seafood?", then opening their mouths with food in their mouths and adding, "See food! Get it?"
- Some episode titles are puns, such as "Undie Pressure".
- Pro Wrestling Episode: In the episode "Can't Lynn Them All," Lynn becomes a pro-wrestler, and after a brief period as a Face, quickly finds herself becoming a Heel, which seems good at first, until she learns just how much the public dislikes her.
- Pungeon Master: Luan frequently makes puns.
- Punny Name:
- In "It's a Loud, Loud Loud House", Sharon DeMonet is a pun on "sharing the money".
- Mom's full name is Rita Loud; say it quickly, and you'll get the term "read aloud".
- Pun With Pi: In "No Laughing Matter", Lisa mentions pi while working in her impromptu laboratory. Luan then comes in, says, "Did you say pie?!", and gives her a Pie in the Face.
- Puppy Love:
- Lincoln has had crushes on three girls: Paige, Ronnie Anne, and Cristina.
- In "L is For Love", all of Lincoln's younger sisters had crushes on boys, except for Lily, who had a crush on a teddy bear.
- Luna is shown closing the episode by putting at "secret admirer" card in the locker of a girl in she hangs out with.
- In "Back in Black", Lucy gets a crush on a boy.
- Putting the Pee in Pool: In "Linc or Swim" the Louds are thrown out of several different public pools for various reason, including a "fecal incident" courtesy of Lily. Later, Lincoln gets a pool for himself, but his sisters start using it. Lisa uses a formula that eliminates urine in the pool; when all the water evaporates, the rest of Lincoln's sisters blush in embarrassment.
Q
- Quivering Lip:
- In "Save the Date", Lori's distraught over Bobby leaving her, complete with rivers of mascara running down her face. Her lip briefly wobbles right before she reveals this to Lincoln.
- Lily once invokes this in "Cover Girls"; her mouth wobbles before she starts fake-crying to distract Rita and Lynn Sr.
- In "Yes Man", Lily holds up a poster of a teddy bear she's been wanting and then her mouth wobbles before she starts wailing loudly enough for her parents to give in.
