Then keep your smart-ass mouth shut.
4 seconds sound clip from the American Graffiti movie soundboard.
You can hear this line at 00:39:16 in the Blu-ray version of the movie.
Quote context
[...]
- Hey, who's the wimp you're hanging out with now? Einstein?
- Tiger happens to be very intelligent, unlike you.
- I know everything your dirty little mind is thinking. It shows.
- Hey, now, buddy, look. The lady obviously doesn't wanna have to...
- Look, creep. You want a knuckle sandwich?
- No, thanks. I'm waiting for a double Chubby Chuck.
- Then keep your smart-ass mouth shut.
- Hey, I'll call you sometime, Deb. Some night when I'm hard up.
- I won't be home. Get out of here. Get out of here.
- You seem to know a lot of weird guys.
- That creep's not a friend of mine. He's just horny.
[...]