Doom
"I gotta take a dump."

We're blasting off again!!!!!
Jesse & James

"aw here it goes!!"
kenan and kel

definetelly would be:
"I reject your reality and substitute my own" from mythbusters
and my favorite character would definetely be gir, from invader zim.

I would put that one from Spaceballs, but I forget it atm D:

But yes, there is one from a TV show, a cartoon:
Sheen: One: she's a female, two: she's not a boy, and three: SHE'S A GIRL!!!