your ass

Pronoun

 * 1)  you ; you.
 * Why is your ass always so late?
 * 1)  yourself, often used as an intensifier.
 * Sit your ass the hell back down, before I bust you upside your head!

Usage notes
See ass § Usage notes regarding the metonymy (and the potential reflexivity).

Coordinate terms

 * my ass

Interjection

 * 1)  A sarcastic expression of disbelief.
 * A: My dog ate my homework.
 * B: Your ass.

Synonyms

 * my ass,, , ; see also Thesaurus:bullshit