Goku:

"Man I'm tired. If I was any more whipped, I'd be butter!"

Vegeta:

"Yes, naturally, it's a super saiyan bargain basement sale."

"Well, well, well... Just out of the factory, no warranty, and already broken."

"That's flattering, but I'm not delicious at all."

"Sorry, but patience has never been our strongest virtue."

"Calm!? I'll show you calm! If he's in there a moment longer, I'll calmly walk in there, and calmly drag him out!"

"I'm warrior! Not a... variety of flower!"

Krillin:

"Let's let that Neanderthal nerd-ball go first."

Bulma:

"Well, Trunks, at least I know you'll grow up to be a handsome young man. And think, all this time I was worried you'd look just like your dad!"

Groups:

Cell: How'd you get so strong?
Vegeta: Cuz I do push-ups and sit-ups and drink lots of juice!

Chichi: "Well, what's more important, camping or homework!?"
Goku: "Chichi I'm not an idiot. Every parent knows the answer to that question. Camping, of course!"

Kabito Kai: "Oh no, sir! We left that strange man and his dog back with Buu!"
Elder Kai: "That poor dog..."

Trunks: Oh, I get it! Vegeta's trying to make Cell withstand his attack!
Krillin: OK. That's one explanation. How about another?
Vegeta's gone crazy and he's going to kill us all!