Ferris: Life moves pretty fast. If you don't stop and look around once in a while, you could miss it.
Ferris: Cameron has never been in love - at least, nobody's ever been in love with him. If things don't change for him, he's gonna marry the first girl he lays, and she's gonna treat him like shit, because she will have given him what he has built up in his mind as the end-all, be-all of human existence. She won't respect him, 'cause you can't respect somebody who kisses your ass. It just doesn't work.
Ferris: Pardon my French, but Cameron is so tight that if you stuck a lump of coal up his ass, in two weeks you'd have a diamond.
Jeannie: In a nutshell: I hate my brother.
Boy in Police Station: That's cool. Did you blow him away or somethin'?
Cameron: I am not going to sit on my ass as the events that affect me unfold to determine the course of my life. I'm going to take a stand. I'm going to defend it. Right or wrong, I'm going to defend it.
Boy in Police Station: There's someone you should talk to.
Jeannie: If you say Ferris Bueller, you lose a testicle.
Boy in Police Station: Oh, you know him?
Ferris: The key to faking out the parents is the clammy hands. It's a good non-specific symptom; I'm a big believer in it. A lot of people will tell you that a good phony fever is a dead lock, but, uh... You get a nervous mother, you could wind up in a doctor's office. That's worse than school. You fake a stomach cramp, and when you're bent over, moaning and wailing, you lick your palms. It's a little childish and stupid, but then, so is high school.
Answer: It's an old insult, somewhat equivalent to 'buzz off'.