April Fools Rules: Luan unleashes an arsenal of pranks on April Fools' Day, and Lincoln tries to avoid wherever she might have in store, but even more troubles arise when Ronnie Anne decides to visit.
Cereal Offender: The kids agree to do the grocery shopping for Mom, and Lincoln is determined to buy a new cereal.
"April Fools Rules"
- Abusive Parents: Mr. and Mrs. Loud are all for locking Luan in a crate for the entire day, though given how extreme her pranking is, it's not unjustified.
- Adults Are Useless: Mr. and Mrs. Loud have every right to stop and harshly punish Luan for terrorizing the house, yet they never do.
- April Fools' Plot: The first "April Fool's Day" episode. It's the one day the Louds dread, because it's Luan's favorite holiday and becomes a villainous, relentless pranking machine and no one is safe from her.
- Batman Gambit: It was revealed Ronnie Anne's visit was set up by Luan, who called her to tell Lincoln his love of April Fool's Day so she would lure him out of his room and suffer her pranks. When Ronnie Anne arrived to give the final blow, she delivers her prank at Luan herself instead.
- Berserk Board Barricade: Lincoln, and then his sisters, board his room with mahogany wood to protect them from Luan's pranks.
- Birdcaged: The Loud siblings attack Luan and trap her in a cage to prevent her from harshly pranking them. She somehow escapes from it offscreen.
- Brick Joke: Luan mentions to Lincoln that all of the Loud property is her pranking territory; come the end of the episode, the Loud parents and sisters, excluding Leni, find out the hard way that includes "Vanzilla."
- Bring My Brown Pants: Lola soils herself after being intimidated by Luan.
- Chair Reveal: Luan does this as a James Bond parody, complete with Cliff sitting in her lap.
- A Day in the Limelight: This is Luan's first big role.
- Deadly Prank: While not actually fatal, some of Luan's pranks come off as excessively cruel and harmful. Such as shaving the pets, almost drowning her family in a giant jello mold, having Clyde be swarmed by crows, and setting wild raccoons on her brother.
- Death Glare: Luan gives one to her siblings after they lock her in a crate.
- Diabolus ex Machina: How exactly Luan escaped her crate isn't revealed.
- Don't Explain the Joke: Once Luan is locked in a crate, Lynn, Lori, and Lana tell crate related puns. When it's Leni turn:Leni: "You're in a crate!"(no one laughs)Leni: "Get it?"Lincoln: "Maybe we should just go to bed."
- The Dreaded: The Louds fear April Fool's Day because Luan becomes a villainous, uncaring prankster and no one is safe from one prank she sets up.
- "Eureka!" Moment: Lincoln decides to put Luan in a crate when Clyde mentions that he had to put his cat in one.
- Extendo Boxing Glove: One of Luan's past pranks involves Lincoln opening the fridge so that a glove springs out and sends him flying into a stove filled with rabid raccoons.
- Foreshadowing: Note how Lily actually smiles and seems calm in the instances of protecting herself and Luan plotting.
- Full-Name Ultimatum: Mrs. Loud yells out Lisa's full name "Lisa Marie Loud" when she and Mr. Loud desperately beg her to let them into her bunker. Subverted in that "Marie" actually isn't her middle name; the Loud parents just use that as their kids' middle name whenever they're in trouble.
- Gelatinous Encasement: In the montage of her past April Fools rampage, one of her pranks is encasing her siblings in a giant Jello mold.
- Hoist by His Own Petard: Luan may have been devious in calling Ronnie Anne over to lure out Lincoln into tripping all of the house pranks and capping it off with a pie to Lincoln's face from Ronnie Anne herself, but she didn't anticipate Ronnie Anne being touched enough by Lincoln's valor to turn the pie back on Luan. Turned out to be a Secret Test of Character/Shipper on Deck moment when Luan smiles and says, "That girl's a keeper".
- Irony:
- The "kitchen this way" sign prank, the most obvious among Luan's arsenal and the only one Lincoln deliberately avoids, ultimately ends up being the least harmful, merely leading Leni, the only one dim enough to fall for said prank, into the city and away from "Prank-pocalypse."
- Luan uses a Batman Gambit to lure out Lincoln, when the more harmful of her pranks resemble that of Batman's deadliest, funniest foe.
- Karma Houdini: Mr. and Mrs. Loud never punish Luan for her pranks, no matter how far she goes. The most punishment she receives that's visible is getting locked in a crate, which she escapes from, and getting a pie thrown in her face, which she didn't seem to mind at all.
- Mass "Oh, Crap!": When the sisters and Lincoln find out that Luan has eventually broken out of her crate.
- Oh, Crap!: Ronnie Anne's reaction when she sees an unconscious Clyde outside of the Loud's house.
- Pie in the Face: Luan calls over Ronnie Anne to throw a pie in Lincoln's face as the capper to him willingly getting pranked. Instead, Ronnie Anne throws it in Luan's face, since she's impressed that Lincoln was willing to go through all that for her.
- Pranking Montage: The episode starts with Lincoln showing a video called "Luan Loud's April Fool's Highlight Reel", which consists of Luan's relentless pranks over the past year.
- Pushover Parents: The Loud parents are just as terrified of Luan's pranks as their children and they never punish her for them, no matter how far she goes.
- Say My Name: After almost everybody in the Loud family falls victim to one of Luan's pranks, they respond by angrily shouting Luan's name.
- Screw This, I'm Outta Here: Lisa runs off to her bunker.Lisa: "Peace out, I'll be in my bunker."
- Schmuck Bait: One of Luan's pranks is setting up a "kitchen this way" sign pointing toward the door. Lincoln isn't fooled by it when attempting to de-prank the house, but Leni obeys it, and follows similar signs which lead her far away.
- Serious Business: The fact that the entire family is looking to take shelter or hunker down during the "Prank-pocalypse" should tell you how bad Luan's pranks can get.
- So Proud of You: Luan is quite clearly proud of her brother for taking almost all of her pranks for Ronnie Anne's sake.
- Stating the Simple Solution:
- Lincoln gathers the sisters in the basement to discuss how to avert the "Prank-pocalypse." Does he suggest pranking Luan before she can prank them? Or setting up a number of complicated, Lincoln-esque countermeasures? Nope, he suggests simply jumping the prankstress before April Fools' Day and keeping her bound and tied in a crate until the end of the day. Too bad it doesn't hold Luan for long.
- Clyde suggests that Lincoln should just tell Ronnie Anne not to come by the house on April Fools' Day. Lincoln immediately dismisses this, fearful that Ronnie Anne might "pulverize" him if he did that.
- Taking the Bullet: Lincoln takes almost all the pranks in the house to keep Ronnie Anne from suffering the same fate. Which is very noble, except that's exactly what Luan anticipated by calling Ronnie Anne to come over in the first place.
- Tar and Feathers: Lincoln gets covered in honey and feathers.
- Throw the Dog a Bone: Leni gets away relatively pranked-free, as she is merely led away into the city by fake signs, compared to Lincoln taking almost all of Luan's pranks in the house and the rest of the Loud family getting paintbombed inside "Vanzilla." Likewise, thanks to Ronnie Anne, Lincoln also avoids the paint bomb van prank and gets to have a milkshake.
- Took a Level in Jerkass: Luan in terms of her April Fools' pranks like slingshotting dirty diapers at her parents.
- Troubling Unchildlike Behavior: While more a throwaway line and overshadowed by Luan's "Prank-pocalypse", it's still rather unsettling that Lola, a six-year old, watched a mob movie.
- What Happened to the Mouse?: After Leni is led toward the city by fake signs, she isn't seen for the rest of the episode. At least Mrs. Loud and Lisa acknowledge this, and the whole family attempts to go searching for Leni in the at the end of the episode (not before putting up with one more prank in the van by Luan, that is).
- Worth It:
- Clyde's reaction after he volunteers to get hit by the pranks in Lori's room.
- Luan is clearly about to get into massive trouble for the paintbomb in the van prank, but doesn't seem to bothered by it.
"Cereal Offender"
- Apology Gift: After hearing their mother chew out Lincoln for the mayhem at the store even though it wasn't his fault, the Loud sisters feel guilty over their reckless actions. So, they decide to go out and buy him a box of cereal for him, the same type he wanted to get in the first place.
- At Arm's Length: Luna does this trope with Lincoln when he tries to snatch his cereal out of her hands.
- Big Ball of Violence: The siblings get into a brawl when Lincoln's sisters discover that he intended to buy a treat for himself.
- Big "NO!": Bobby does it when Lincoln knocks down his stack of paper towels.
- Bittersweet Ending: Lincoln and his sisters end up getting kicked out of the store, costing Lincoln his cereal and getting him in trouble with their mother. However, the sisters, feeling guilty for their actions, manage to make it up to him by buying him the cereal themselves.
- Bowdlerization: On the UK version of Nicktoons TV, the scene of Lynn using a shopping cart as a skateboard was cut due to the UK's rules against showing "dangerous, imitable behavior" (particularly if there's no clear indicator of how dangerous the action is. If Lynn fell or a character told her what she was doing was dangerous, then it would have been left in) on children's and family TV shows and movies.
- Chekhov's Gag: Lincoln manages to subdue the bratty kid with a lobster Leni set afloat.
- Child Hater: The store manager was more than eager to throw away the Loud siblings from the moment they arrived, under the assumption that they were vandals.
- Cucumber Facial: Mrs. Loud in her Imagine Spot.
- Cutting Corners: To save enough money to buy his Zombie Bran, Lincoln takes discounted items like a dented soup can and old lettuce.
- Doomed Supermarket Display: Bobby makes a display of paper towels to look like Lori's head, which she is quite impressed by, but Lincoln stumbles into it and knocks it all over in his struggle to get his cereal.
- Ear Ache: The bratty kid's mother drags him out this way after they're kicked out of the store.
- Food Fight: The kids do this with the Zombie Bran at the end.
- Free the Frogs: Leni attempts to free the lobsters at the seafood section by tying them to balloons and having them float to the ocean. She also tried to set free chicken from the rotisserie... chicken that was already roasted.
- Grocery Store Episode: Lincoln and his sisters go to the grocery store in this episode.
- Handbag of Hurt: Lily does this to Lincoln when he tells her to stay home with dad.
- Human Popsicle: Lisa mentions she is researching the possibilities to freeze herself since the future needs her brain, and uses the supermarket freezer to do so.
- Identical Stranger: Downplayed, but the bratty kid that keeps antagonizing Lincoln wears almost the exact same clothes as Lincoln, and although his hair is not white, he wears a white knit cap over it.
- Jerkass Realization: After seeing how much trouble they got Lincoln into with Mom, the girls realize what jackasses they've been and decide to buy Lincoln his cereal with their own money as an apology.
- Karma Houdini: Aside from being kicked out of the store and not getting the treats they want, the girls don't receive much punishment for their chaos caused in the store. They don't even get scolded like Lincoln does despite trying to admit fault in the incident, though they are made to feel bad.
- The Millstone: Lincoln's sisters not only don't assist him in doing the grocery shopping, they actively hinder him by causing chaos in the store. This ultimately results in them all getting kicked out without their purchases.
- Misplaced Retribution: When the sisters’ shenanigans get the Louds kicked out of the grocery store, their mother singles Lincoln out for punishment. Not only that, but when Lincoln tries to explain it wasn’t his fault, his mom shuts him down.
- Parental Bonus: "Yippie-ki-yay, market shoppers!"
- Pun: The second Zombie Bran commercial advertises the new “Raisin the Dead” flavor.
- Sausage String Silliness: When Lincoln chases after the bratty kid who took his box of Zombie Bran, the kid tries to slow him down by spilling coffee beans on the floor. To get across them, Lincoln takes some linked sausages from the nearby deli and uses them like a rope to swing over the coffee beans.
- Scary Black Man: The store manager.
- Throw the Dog a Bone: After failing to do the groceries, getting kicked out of the store, and being wrongfully blamed by his mother, Lincoln is finally awarded his Zombie Bran by his sisters as an apology for ruining all his hard work.
- The Un-Reveal: Mom's face is shown in an Imagine Spot of herself at the spa, though her eyes are covered by cucumbers.
- Wingding Eyes: Lincoln after watching the Zombie Bran commercial:Lincoln: Must...have...Zombie Bran!
