rump

Short definition from Wiktionary

Noun

1. 1
   The hindquarters of a four-legged mammal, not including its legs
2. 2
   A cut of meat from the rump of an animal.
3. 3
   The buttocks.
4. 4
   A remnant, as in Rump Parliament.

Verb

1. 1
   To turn one's back on, to show one's (clothed) backside to, as a sign of disrespect.
2. 2
   To fuck. (Compare bum (verb).)
3. 3
   To cheat.
4. 4
   To ramble; to move (or talk) aimlessly.
5. 5
   To move (someone or something) around.

Proper noun

1. 1
   A surname.
2. 2
   The Rump Parliament of 1648-1653 and 1659-1660.