One of the funniest scenes ever:

Donnie:
You're such a fuck-ass!

Rose Darko:
Please.

Elizabeth:
What? Did you just call me a "fuck-ass"?

Rose Darko:
Elizabeth, that's enough.

Elizabeth:
You can go suck a fuck!

Donnie:
Oh, please, tell me, Elizabeth, how exactly does one suck a fuck?

Elizabeth:
You want me to tell you?

Donnie:
Please, tell me.

Rose Darko:
We will not have this at the dinner table. Stop!

Donnie:
[Mouthing] I'm all ears!

Samantha:
[After period of silence] What's a "fuck-ass"?