cunt

Definition 1: A term for a woman's genitalia often thought to be rude

Definition 2: When someone is being particularly annoying or pissy

Def 1:

-Guy 1: I can't wait to fuck her right in her CUNT
-Guy 2: I did that last week, sorry dude, her CUNT is just so nice

Def 2:
-Guy 1: Fuck you dude
-Guy 2: You're such a motherfucking CUNT