Dudley: "STAY WITH ME, CHIEF! DON'T GO INTO THE LIGHT!"
Dr. Apocalypse, 'nuff said.
Kitty's terrible dancing in "The Rat Pack". "Okay, looks like you [Kitty] have a hornet in your pants."
"He's also got a dash of billy goat, which I can't quite explain".
"Hi, Mom. (Beat) Well they're supposed to sting, they're fire ants!"
When Dudley's figure skating disguise leads guys to buy him food at restaurants: "I am never taking this off!"
Also in that episode, he accuses the old lady turtle of being the criminal mastermind.
Dudley:YOU'RE GOING DOWN, GRANDMA!! [the old turtle faints]
When The Chameleon throws a canister of helium at Dudley and Kitty, the former after inhaling it jokes that he's "Tiny Dudley", and he lives in a thimble and eats mini mini waffles.
At the end of "Watch Dog" Dudley uses the watch one last time to catch the ice cream man. He succeeds, but finds he's now wearing a pair of jeans and has no idea how they work.
"Sorry, [insert character's name]. Or should I call you... THE CHAMELEON??" (hitting whoever with Kitty)
"Stop using me to hit people, Dudley! Or should I call you... THE IDIOT??"
"No, Mr. I-only-have-one-idea-and-I-keep-repeating-it-!"
The Really Big Mission episode, where The Chameleon turns into a cup holder. "Yay, I'm helping!"
"Who puts tiny scorpions in a pen?!"
Dudley drilling a hole through the Earth, causing it to emit a whistling sound as it rotates.
The Chief trying to hit Dudley with the "Fist-In-The-Box" only for him to miss, and the fist to rebound off of the walls and knock a shelf full of anvils on him.