Stewie finally says his first word, and it's a swear word; when Lois is shunned by the other moms, she tries to figure out where Stewie could have possibly learned it.
This episode contains examples of:
- Artistic License – Biology: No, men in Canada do not have vaginas, despite what Caillou's dad claims.
- Art Shift: The cutaway of Peter meeting with Caillou's dad, with the latter being animated in the same style as the show he comes from.
- Atomic F-Bomb: The plot kicks off with Stewie dropping one in the middle of church after the pastor announces that Chewy Chips Ahoy won't be served at the coffee service.
- Baby's First Words: The subject of the episode.
- Biting-the-Hand Humor: Peter asks the Magic 8 Ball if Fox is viable in the streaming era; the Ball responds by exploding in Peter's face.note
- Continuity Nod: Investigating who Stewie learned to swear from, Lois waxes the stairs and lures Peter down them. He instead drops a lot of non-swears while falling, having apparently learned to manage his temper since.
- Disproportionate Retribution: When Meg compares the water inside a Magic 8-Ball to a tampon commercial, Peter orders her to eat in the attic, and Lois is ostracized by the other moms in town, just because Stewie said a bad word.
- Gosh Dang It to Heck!: Peter lets out a series of these rather than his usual Cluster F Bombs while falling down the waxed stairs. Lois is shocked at how Peter became more polite and Peter reveals that he learned it from hanging out with Caillou's dad.Peter: Ouch! Oh, heavens! Oh, goodness gracious! That's smarts! Oh, my! Egad! Well, I'll be! Yikes!
- Heel Realization: Lois has one when she realizes that she is the reason that Stewie swore in church.
- Hearing Voices: After watching all those Caillou episodes, Lois keeps hearing the show's narrator.Lois: Make it stop!
Narrator: Not until you kill them all, Lois. - High-Pressure Emotion: Stewie as he drops his Atomic F-Bomb.
- Hypocritical Humor: Bonnie says that Stewie's first word being a swear word means that Lois is a bad mother. She's then shot by with a crossbow by Kevin, chastising him for hitting shooting arrows when she'd told him not to - which he rudely corrects as being a bolt. She just laughs at his antics while pulling the bolt out of her arm.
- "Jump Off a Bridge" Rebuttal: Peter used the Magic 8 Ball to decide whether or not he should touch a female co-worker's hair. In the HR department, Peter blames the ball, so the sponsor asks him if he'd jump off a building if it told him to. Peter asks if it did and soon jumps off the roof.
- Lampshade Hanging: Brian points out that Stewie speaks all the time and was only just now understood when he swore.
- Parental Hypocrisy: Lois drops a Precision F-Strike right in front of Stewie outside of the liquor store and then comes to the conclusion that she's the one who's responsible for exposing Stewie to profanity.
- Parental Neglect: Peter spends his time getting drunk, neglecting to take Stewie to preschool and mowing the lawn filled with rocks while Stewie is stuck in a small chair.
- Precision F-Strike: Stewie's first word and during church, no less.
- Prematurely Bald: Caillou, much to his irritation.Caillou: Why am I bald? I'm not a baby, I'm four! Are kids just bald in Canada?
- Profane Last Words: Inverted, Stewie's first word is an Atomic F-Bomb.
- Pushover Parents: "Caillou's beta dad" is shown to be one, giving into Caillou for what is implied to be far from the first time, and making him a pie despite him having had a tantrum immediately beforehand. The narrator remarks that raising Caillou in this way will cause him to become a sociopath when he grows up.
- Rage Breaking Point: Stewie gets more fed up with the church sermon as it goes on and the show he tried to watch on his phone kept buffering. When it's announced that Chewy Chips Ahoy won't be served at the coffee service, he snaps.
- Red Herring: TV and then Peter are considered the primary suspects for where Stewie learned to swear.
- Screw This, I'm Outta Here: After finally realizing that occasionally swearing doesn't make her a bad person or a bad mother, Lois angrily defends herself to the resort yoga group before storming out and returning home.
- Selective Enforcement: Lois is shunned by her friends and neighbors just because Stewie swore once in church (and this was before Lois was revealed to be responsible for it). Peter, meanwhile, drinks vodka while looking after Stewie and mows the very rocky lawn while Stewie is in his baby bouncer (which he can barely fit into), causing him to be pelted with rocks and suffer noticeable injuries. Nobody says a thing.
- Self-Deprecation: In the final scene, Peter admits they've long since forgotten how to end episodes properly and just do random nonsense now.
- Series Continuity Error: The Griffin family (sans Brian) treat Stewie's "first word" as if they never heard him speak before, even though Chris regularly interacted with him in later seasons, and there were countless gags of the parents understanding bits and pieces from him.
- The Sociopath: Caillou is on his way to becoming one, due to his father's extremely lax parenting.
- Suddenly Shouting: After what happened in church, a depressed Lois calmly remarks she might start drinking wine at home.Chris: Start?
Lois: NOT THE DAY FOR IT, CHRIS! NOT THE DAY! - Swear Word Plot: After Stewie's first word turns out to be a swear, Lois sets out to find the cause.
- Take That!: A good portion of the episode takes shots at Caillou, namely Caillou's baldness (despite him being only four years old), his dad being a Pushover Parent (with Peter even referring to him as "Caillou's beta dad" and the narrator referring to him as "low testosterone" and claiming him to be "flooding with estrogen"), and the narrator.
- Tomato in the Mirror: After initially thinking that television and Peter are the cause of Stewie's swearing, Lois eventually realizes that Stewie must've learned from her after she drops an F-bomb in frustration right in front of him.
- Truth in Television: Lois' first instinct when hearing Caillou's name is to blame him for Stewie's potty mouth. While swearing isn't necessarily a part of it, the program has been criticized for encouraging bad behavior in young viewers by showing Caillou going unpunished for tantrums and getting his way through whining and crying.
