You better not go to sleep. As soon as your eyes shut, I'm gonna punch you square in the face.
8 seconds sound clip from the Step Brothers (2008) movie soundboard.
You can hear this line at 00:16:36 in the Blu-ray version of the movie.
Quote context
[...]
- You and your mom are hillbillies.
- This is a house of learned doctors.
- You're not a doctor. You're a big, fat, curly-headed fuck.
- Oh, yeah? I'm a curly-headed fuck?
- Yeah.
- You better not go to sleep. As soon as your eyes shut, I'm gonna punch you square in the face.
- I hope you stay still when you sleep because I'm putting a rat trap between your legs.
- I'm gonna take a pillowcase and fill it full of bars of soap and beat the shit out of you.
- I want you out of my fucking house.
- No way, kemosabe. This is my house now.
[...]