Anguished Declaration of Love: Babs attempts to give one to Buster right when it seems they're going to go over a cliff, but Buster shushes her, saying "I feel the same way."
Bad Butt: Perhaps in consideration of cinema-goers' sensitivities, Fowlmouth is reduced to saying "dad-gum" instead of his usual cussing, pretty much losing the character's (admittedly one-dimensional) point for existing in the first place.
Big Dam Plot: Buster and Babs' subplot is kicked off when an escalating water fight ends with Babs intentionally opening a dam and flooding Acme Acres.
Fifi tries to get into the hotel Johnny is staying at, where she encounters Jay Leno, Roseanne Barr, David Letterman (who is there for one of a few reasons listed in the end credits), Ed McMahon, Johnny Carson, Barbara Walters, Oprah Winfrey, and Arsenio Hall.
Escalating War: Buster Bunny starts a water fight with Babs. By the end, Babs opens a dam, then Buster triggers a massive tsunami, and Acme Acres ends up underwater.
Fur Is Clothing: Dizzy Devil is afraid to spin because he's shedding, and doesn't want to end up naked. Eventually he does spin and lose his fur, and spends the rest of the movie wearing a cardboard box and feeling ashamed for being naked.
Horrible Judge of Character: Hamton and his family, who can't seem to realize that Mr. Hitcher is probably a dangerous criminal, even with the chainsaw and hockey mask.
I See London: When a female possum's green mini-skirt falls off, she is left in her blue bloomers or pantalets. Facing the viewers, she tries to cover up with modesty and coyly giggles as she exits the scene.
Idiot Ball: Hamton and Plucky both hold one in the comic book scene. Hamton, who gets carsick when he reads in the car, refuses to take his eyes off Plucky’s priceless comic book, and Plucky does everything BUT get the comic book out of the line of fire.
Also the fact that Hamton didn't TELL him he gets carsick when reading until AFTER it happens. His mother warns Plucky but doesn't outright state it.
Kissing The Ground: Plucky is so happy to be home from a horrible road trip that took all summer that he kisses Hamton's lawn, only to discover that there's fertilizer on it as plants start to grow on his tongue.
The THX logo is parodied as THUD, very cleverly. Just about everyone in the theater covers their ears as the trailer begins, knowing to expect loudness. Then, they get blasted out of their seats as a sound similar to the THX Deep Note plays. There is also text below the THUD logo saying "A Division of Mucasfim," a reference to Lucasfilm, which used to own THX. At the end, an announcer (who some people think sounds like Alan Rickman) says "The Audience Is Now Deaf," spoofing THX's motto "The Audience is Listening."
The entire possum plot, complete with the bridge shot and "Dueling Banjos" scene is a PG-rated version of Deliverance.
Through a Face Full of Fur: Dizzy no longer has fur in this case since he spun it off, but he lightly blushes after becoming nude and he grabs a cardboard box to cover up his nudity.
Visual Pun: When Plucky gets a whiff of the filth Hamton’s Uncle Stinky left on his hand after shaking it, his body turns black-and-white-checkered and he passes out. Get it? He checks out.
What's a Henway?: Buster gets caught by the Boo sisters, and all three of them insist on marrying him. The father obliges, leading to this exchange:
Buster: I can't marry all three of them, that's bigamy! Big Daddy Boo: No, that's big-a me! (cue rimshot)