Beck: What are you doing?
Travis: I have to pee.
Beck: Pee in your pants. Move!
Hatcher: I feel like a little boy who's lost his first tooth, put it under his pillow, waiting for the tooth fairy to come. Only two evil burglars have crept in my window, and snatched it, before she could get here. Wait a second, do you understand the concept of the tooth fairy? Explain it to them... Wait. She takes the god damned thing, and gives you a quarter! They've got my tooth. I want it back.
Dark Helmet: Did you see anything?
Colonel Sandurz: No, sir. I didn't see you playing with your dolls again.
Dark Helmet: 1-2-3-4-5? That's the stupidest combination I've ever heard of in my life! That's the kinda thing an idiot would have on his luggage! Later....
President Skroob: 1-2-3-4-5? That's amazing! I've got the same combination on my luggage!
Dark Helmet: I am your father's brother's nephew's cousin's former roommate.
Lone Starr: What does that make us?
Dark Helmet: Absolutely nothing.
A list of movies that I find so quotable, I could probably mute the movie and recite it almost word-for-word myself.