In "Hare-Raising Night," Buster tricks everyone into going on a dangerous mission by saying they're going to the Emmys.
Plucky failing to see through the ruse when they arrive at the destination, instead spending the entire episode believing he's at the Emmys.
The entire "Mango Juice" segment of the "Kon Ducki" episode.
Heck pretty much all of "Kon Ducki", especially the "making of" part with the Running Gag of Plucky's name being misspelled on his chair ("Pluggy Doug" and later "Ploogy Doog"), showing how they did the "whirlpool scene" ("Go baby go!"), and the revelation that Sweetie is actually Richard Nixon.
Sylvester literally flooding the booth with his spit, eventually causing a shark to chase Porky Pig around and then the glass to break.
"Water go down the hoooooooooole."
"Elelator go up... elelator stop!"
Episode 31 has this.
Plucky: Look! No hands!
Gogo: Look! No bike!
In a scene from the episode "Animaniacs", we are given Gogo's... "unique" cartoon. It is so bizarre and unlike anything else in the series, that the audience (when shown watching the cartoon) have these hilarious facial expressions that just scream, Oh my God, what am I WATCHING???
There's also his explanation for it: "It was realism!" (For those who haven't seen it — it's actually an excerpt from a live-action, black-and-white Warner Bros. comedy short from 1953.)
Shirley the Loon's ending to her excruciatingly long cartoon. "Like, THE END ... fer sure."
Even Bugs Bunny barely has any sanity left by the end of the presentation. He goes from trying to keep Daffy and Porky from leaving to screaming and running for the door along with them when they learn just how long Shirley's cartoon is. After the cartoon is over, he's just as much of a blubbering mess as Daffy and Porky.
In Starting From Scratch, when Buster tries to fight the bedbug with a homage to Bugs's Mexican hat dance. The animation combined with the music just sells it on a truly hilarious level.
Same episode, when Babs, Buster, and Plucky are inside Furball's head messing with his pleasure center and releasing his worst fears.
The Mynah Bird's cameos in Buster and the Wolverine. Especially when the characters land in a snowdrift after being spit out of the Wolverine's stomach and Plucky watches it walk off, saying "So that's what was jabbing me in the back!"
Also from Starting From Scratch, the heroes are shrunk on top of Furball, and Babs starts swinging around on one of Furball's hairs doing a Tarzan yell for no apparent reason. When she lands, Plucky just glares at her and says "That was pointless."
Later on in the episode, when people are watching and laughing at the old Bosko and Honey cartoons, one guys ends up laughing so hard that he explodes!
Fifi La Fume in the episode "Aroma Amore" has a few great lines, but the best has to be after she gives herself a makeover. She says to the camera "If looks could kill, you would not be feeling so well, eh?" Also her calling the fleeing Furball a flirt.
From Thirteensomething, the two network executives Edward and Fran, who keeps telling him that he's "so lost". When Buster emerges on the show as Babs's "long lost twin" we get this:
The look of sheer terror frozen on Buster and Babs' faces when they realize Elmyra is their car rental agent.
Elmyra: Wait! Come back! I have so much love to give and SO MANY CARS TO RENT!
Shirley frequently referring to the two bunnies as "You murderers."
Hamton going prima donna after his epic swashbuckling story gets shot down for another Buster and Babs plot.
Hamton: It's PIG DISCRIMINATION, I tell you!
The reveal that the script was actually written by middle school students (And it was, too.).
Buster: What is with this story it's like thirteen year-olds wrote it!
Babs: Thirteen year-olds did write it.
Buster: Oh yeah, that explains it.
Buster on the airplane:
Plucky: (playing a flight attendant) And what'll it be? Gray lumps in brown sauce, or brown lumps in gray sauce? (Buster looks sick) Buster: Uh, you wouldn't have any tasy, nutritious carrots, perchance, would you? Plucky: Closest we come are these freeze-dried, reconstituted carrot chips. Buster: Hmm. How bad can they be? (tries one and instantly gets sick, melts, and bolts for the bathroom, which is occupied. He goes in anyway and afterwards...) Lemme guess: You guys had the carrot chips too?
A little exchange in the 'time travel' episode was probably stolen from classic vaudeville:
Buster: Take away your props and costumes and what would you be?
Montana Max: You see, there is nothing you possess that I cannot take away. (runs off-screen) Hahahahaha!... (his head snaps back into camera) hahaha.
From the Spring Break Special:
The fact that the Dead End Kid from the Easter YeggsLooney Tunes episode is turned into a literalRunning Gag because all he does is run through scenes repeating the following:
Dead End Kid: I wanna Easter egg I wanna Easter egg I wanna Easter egg!
When he finally does get an Easter egg, it hatches and Elmyra pops out. Boy did he look pissed when she did.
Elmyra bribes Tommy Lee Jones into helping her kidnap Buster (whom she thinks is the Easter Bunny and he is) by telling him she's got Harrison Ford in a cage at her house.
"I'll Be Chasing You."
"K-ACME TV": The random commercial of Ralph lying on a couch in nothing but boxer shorts saying, "Don't hate me 'cuz I-I-I'm beautiful."Note (A reference to a Pantene shampoo slogan at the time)
"Weekday Afternoon Live": The Cheesy Sneezer's commercial, which ends with Sneezer sneezing the piping hot pizza onto Plucky's face, who screams.
Chorus: (singing) Cheesy Sneezer's, where the pizza's scalding hot!
In Hare Today, Gone Tomorrow, Buster and Babs, fed up with Elmyra's annoying affection, pretend to drag her to a planet of bunnies, and treat her the same way she treats the animals she holds captive.
While Buster is the Straight Man to some of the show's wackier characters, the short, "Ruffled Ruffee" (part of "Music Day") proves he's not immune to being wacky himself. Some highlights from the short include:
The fact that Buster spends the majority of the short dressed in a diaper and a green bonnet. Buster also has a lot of fun with his disguise, from shoving his diapered butt in Ruffee's face, to popping a thought balloon with Plucky's opinion on "The Animal Song" in it with the safety pin from his diaper.
When Ruffee makes Buster assist him in playing the drum for "The Body Song", Buster's gloves gradually speed up the beat while Buster builds a fort out of sandbags, which he hides behind when Ruffee explodes from singing too fast.
Throughout "Milk, It Makes a Body Spout", Buster and Plucky compete to see who can make Hamton laugh so hard, milk squirts out his nose first. In one of Buster's attempts, he borrows Junior Bear's shoes to use as a beak for his impression of Foghorn Leghorn.
Buster: What, I say, what in tarnation have we got here, boy? Ya'll got to put some meat on those feathers, son, or you'll blow south for the winter!
One of Plucky's attempts in the same segment is pretending to be a mailbox. Granny then mistakes him for an actual mailbox and attempts to mail all the postcards her class is sending (which is a giant bag's worth) by shoving them in his mouth.
The Reveal at the end of the same segment that the reason why Hamton didn't laugh at any of Buster or Plucky's acts was because he wasn't paying attention to any of them. In fact, he was thinking about a math problem.
From "Drawn and Buttered", Hamton channeling Darth Vader when he tries to kill the Irish lobster under the mistaken belief that he's a cockroach.
Hamton: (breathes heavily) And now, young side-walker, you die!
At the end of the same segment, Elmyra comes into Hamton's house, wanting to protect the Lobster from Hamton. The Lobster ultimately decides to take his chances in a pot of hot water.
"Phone Call from the 405" in "Fox Trot":
Steven Spielberg, on the phone with Buster and Babs, causes a car to careen off a cliff while not paying attention to driving.
Steven demands more shadows; eventually the screen becomes nothing but black, aside from Buster and Babs's eyes.
After jumping through hoops for Steven, Buster and Babs are informed that their fall off the cliff was all wrong, and to "just do it over." Cue Rage Quit from the duo, who pull Steven through his car view screen, into the cartoon, and sic foxes on him.
Monty answers a question with, "Any moron knows that!" Granny shouts "WRONG!" and gives him the super long term paper. Monty can only respond with an annoyed, "Ooooooohhh...."
Shirley gets a question about how to animate a scene, and she claims it's impossible to animate. Granny shouts, "WRONG! Nothing's impossible in animation!"
Elmyra answering a question about using trigonometry when animating a dog and cat fight, focusing more on the animals themselves than the trigonometry. Granny says, "That's very sweet... AND VERY WRONG!"
Granny tells Little Beeper, "Let's find a tough one." Then when Little Beeper goes to answer, all he can do is spout "Beep beep!", and Granny shouts "WRONG!"
When Plucky's finally called on, he tries to stall but Granny doesn't fall for it. In desperation, Plucky pleads, "But Granny! It's 2:59!" (referring to the clock) Granny, delighted, says, "259? That's absolutely correct!" Plucky falls to the floor, jittering in what can only be described as a mixture of ecstatic elation and a stress-induced seizure.
While "Duck in the Dark" from the same episode is largely based around Nightmare Fuel (mostly taking place in nightmares Plucky is having and all), it does include a fairly humorous Double Subversion of the Threatening Shark trope: At one point during his nightmares, Plucky is in an unidentified body of water when a shark fin starts swimming around him. Plucky panics as the creature surfaces....but it's just some random kid with a Tintin-like hair-do; Plucky is a rubber duck in this kid's bathtub. Plucky expresses relief...only for the kid to pull down an un-seen zipper on his head to reveal that he's actually a shark in disguise that eats Plucky anyway.
"The Learning Principal" in "Looniversity Daze" is hampered by some Off Model animation, but it still has some funny moments:
Yosemite Sam unknowingly eats a whole pineapple.
The Running Gag of everyone wanting Buster's stereo, since he's being sent to the principal's office: First Plucky, then Babs ("That's it, you're out of my will!") and finally the principal himself. Buster snarks, "Jeez, am I the only one around here with a CD player?"
When Buster first enters the principal's office, he quietly asks, "Mr. Principal? Yoo-hoo? Oh, no one here, better be going!" And when the principal first appears:
Principal: Buster Bunny. Buster: That's my name, don't wear it out. (chuckles) Principal: SILENCE!!!