noun

1. The hindquarters of a four-legged mammal, not including its legs

2. A cut of meat from the rump of an animal.

3. The buttocks.

Synonyms: round, croupe, crupper

verb

1. To turn one's back on, to show one's (clothed) backside to, as a sign of disrespect.

2. (somewhat vulgar) To fuck. (Compare bum.)

3. To cheat.