You'll put Ariel in the garbage disposal.
5 seconds sound clip from the Donnie Darko movie soundboard.
You can hear this line at 00:18:57 in the Blu-ray version of the movie.
Quote context
[...]
- Hey, my dad said he saw you at the golf course. You sleepwalking again there, buddy?
- I don't want to talk about it.
- And now that you're famous, you gotta have a smoke.
- What happens if you tell Mom and Dad about this, Sam?
- You'll put Ariel in the garbage disposal.
- Hey, Cherita, you want a cigarette?
- Shut up!
[...]