Definition of my ass!chiefly US, informal + impolite
- "You think your job is tough work? Tough work, my ass! My job is the tough one."
: of or relating to me or myself especially as possessor, agent, object of an action, or familiar person
: muscle : muscle and
What made you want to look up my ass!? Please tell us where you read or heard it (including the quote, if possible).