For those without video capability, here's the beginning and end of their fight, for your reading enjoyment:
Heckler: Did you ride Levi like that?
Heckler: Your mother's a whore!
Bristol: What'd you say?
Heckler: Your mother's the fucking devil, dude.
Bristol: Oh is she?
Heckler:Yeah, she's the devil.
Bristol: What'd she do wrong?
Heckler: She lives, she breathes. If the is a hell — which is don't believe there is one — she will be there.
Bristol: Okay why is that.
Heckler: She's evil, she —
Bristol: All right, is it because you're a homosexual?
Heckler: Pretty much.
Bristol: Then that's why you don't like my mom.
Heckler: Hey, you know what? I met Levi here. He's so much more of a gentleman than you.
Bristol: You're right, you know, he hasn't seen his kid in a year? So keep talkin'.
Heckler(s): Well you know what? You're fucking trash. Move on, bitch. You're trash. You're white trash from Wasilla.