Arthur's ToothArthur finally has a loose tooth! But it won't come out, and everyone is calling him a baby at school.
Tropes for this episode include:
- Age Lift: In the original book, Arthur was seven years old and in second grade.
- Blatant Lies: Arthur tries to pretend that D.W.'s shark tooth is the tooth he lost. Francine busts him for it easily.
- The Dentist Episode: Arthur visits the dentist to have his loose tooth yanked.
- Easily Forgiven: Arthur forgives Francine for making fun of him after she accidentally knocks out his tooth. Though he does jokingly ask for 25 cents since she claimed she was the Tooth Fairy for a game.
- Graceful Loser: When Francine goes to check on Arthur after she accidentally hurts him, he gives her his tooth and facetiously reminds him of her earlier claim she's the tooth fairy, and she owes him 25 cents for the tooth. To this, Francine gives an impressed smile, expressing she's rather happy for Arthur that he's now among the kids who've lost a baby tooth. Given she's previously been teasing Arthur about him being the only kid who hasn't lost his tooth, this isn't nothing.
- Hit Me, Dammit!: Arthur asks Binky to punch him in the jaw to knock his tooth loose (even smiles in anticipation as Binky rears his fist). However, Binky just can bring himself to hurt someone for no real reason at all.
- Jerkass Ball: Francine grabs it hard when Mr. Ratburn finds out Arthur's the only one in class who hasn't lost a tooth, and she mercilessly teases him about it for most of the episode.
- Jerkass Realization: After her soccer ball hits Arthur in the mouth, Francine runs over and apologizes to him. Arthur says it's okay because that finally knocked out his tooth.
- "Not So Different" Remark: The dentist tells Arthur that there's no shame in not having lost any baby teeth yet, and that he didn't lose his first baby tooth himself until he was almost nine years old.
- Self-Destruct Mechanism: The Brain's tooth-removing machine has one, which he ends up setting off when the machine goes haywire and gets out of his house.
- Sweet and Sour Grapes: After his trip to the dentist, Arthur feels better about having his baby tooth and tells off Francine for trying to make him feel bad. Then she accidentally knocks out his tooth, and Arthur gives it to her since she was playing a game where she was the Tooth Fairy, asking for 25 cents.
- You Are Better Than You Think You Are: "Having baby teeth doesn't make you a baby, Arthur."
D.W. Gets LostAfter Emily shows off stone jewel earrings she got at a store, D.W. asks her mother for a pair.
Tropes for this episode include:
- Break the Haughty: The episode starts off with Emily showing off her new earrings to D.W., but near the end of the episode, after D.W. runs into Emily and her mom, it turns out that they're returning the earrings because they turned Emily's ears green.
- Brick Joke: When D.W. asks her mother why she can't get earrings like Emily's, her mother replies that they'll make her ears green. While this seems to just be one of those typical things parents say to get kids to listen to them, the end of the episode reveals that Emily's earrings really have turned her ears green.
- Carrying a Cake: D.W. wanted to help her father with carrying cakes. He told her to only take one. She took all of them, slipped on frosting she had dropped, and spilled all the cakes.
- Doomed Supermarket Display: D.W. enters the store's security room and begins playing around with the cameras to find Mom on the screens. Her antics first knock out an employee in the Video Department, followed by toppling a display of tennis balls arranged in a pyramid. When she sees customers tripping over her mess her response is "Look at all those clumsy people!"
- Ear-Piercing Plot: D.W. gets jealous of her friend Emily having gotten her ears pierced, but Mom refuses to let D.W. follow suit, telling her that it'll turn her ears green. After getting lost in the local department store later, D.W. runs into Emily returning the earrings, because this warning was Not Hyperbole. Truth in Television — sometimes ears can turn green after being pierced, though it's less due to the piercings and more caused by cheap copper jewelry
. - Megaphone Gag: D.W. uses a megaphone to announce "Free desserts on Aisle 12!" so the people eating all the free cheese samples can leave so D.W. can have some (it's too late by the time they leave)
- Not Hyperbole: Throughout the episode, D.W.'s parents warning her that getting earrings will turn her ears green is framed as a hyperbole to discourage her from wanting earrings in the first place. Later, she sees first-hand (through a rather unhappy Emily) that anyone's ears turning green from earrings is a very real possibility.
- Rule of Three: The worry that the earrings will turn D.W.'s ears green comes up three times: Jane mentions it as a reason to not get earrings. David says that green ears don't suit D.W. when he demonstrates with pieces of lettuce. Then Emily's ears are revealed to have turned green, and her parents are returning the earrings.
- Wham Shot: When D.W. meets Emily at the store, she asks if she's here to get more earrings. To this, Emily soberly says "No, I'm returning mine." ...cue the camera panning out to show her ears have turned green. D.W. gasps at seeing her parents weren't exaggerating.
