One from Sin City,
Marv: I'll stare the bastard in the face as he screams to God, and I'll laugh harder when he whimpers like a baby. And when his eyes go dead, the hell I send him to will seem like heaven after what I've done to him.
Couple from Dazed and Confused,
Slater: Behind every good man there is a woman, and that woman was Martha Washington, man, and everyday George would come home, she would have a big fat bowl waiting for him, man, when he come in the door, man, she was a hip, hip, hip lady, man.
Clint: I only came here to do two things, kick some ass and drink some beer.
[glances over his shoulder].. Looks like we're almost outta beer.
Clint: What did you just say?
Mike: What?
Clint: Just now, man. When you walked past, what'd you say?
Mike: About what?
Clint: You said, "Someone's tokin' some reefer."
Mike: No, I meant somewhere I smell some pot, you know? It was just an observation.
Clint: Oh, an observation, huh? Well who the hell are you, man? Isaac ******* Newton?
Wooderson: All right, all right, all right.
Superbad,
Seth: Enjoy your remaining years!
Old Lady: Enjoy ******* Jules!
Seth: I will!
Jules: You scratch our backs, we'll scratch yours.
Seth: Well Jules, the funny thing about my back is that it's located on my ****.
Evan: Calm down, calm down. She likes you. She wants to suck on your penis. That's a good thing. It's the best.
Evan: Oh my gosh, oh my gosh, It was so pimp, I even offered to pay for the alcohol.
Seth: Oh no, that IS pimp.
Evan: That's what I was afraid of.

I'll stop here.