The following is a lista of some of their greatest moments. Most of these are from the books. However, these first two are from the DH1movie. Enjoy!

Moody: Fair warning: it tastes like goblin piss.
One twin: How do tu know what that tastes like? *sees Moody's glare* Just trying to ease the tension.

Both: *after transformation* Wow. We're identical.

Ok. Here we go with frases from the books. Don't forget to comment. Also, add any I may have missed.

"Fred, tu next," the plump woman said.
"I'm not Fred, I'm George," dicho the boy. "Honestly woman, tu call yourself our mother? Can't tu tell I'm George?"
"Sorry, George, dear."
"Only joking, I am Fred," dicho the boy, and off he went.

"Blimey," dicho the other twin. "Are you--?"
"He is," dicho the first twin. "Aren't you?" he added to Harry.
"What?" dicho Harry.
"Harry Potter," chorused the twins.

"Aaah, has ickle Ronnie got somefink on his nosie?" dicho one of the twins.

"Hang on, I think I remember him saying something about it," dicho the other twin. "Once--"
"Or twice--"
"A minute--"
"All summer--"

"Blown up a toilet? We've never blown up a toilet."
"Great idea, though, thanks, Mom."

"Never mind that, do tu think he remembers what You-Know-Who looks like?"

"We'll send tu a Hogwarts toilet seat."

"We got Potter! We got Potter!"

"You must be good, Harry, Wood was almost skipping when he told us."