Definitions
1.NounThe hindquarters of a four-legged mammal, not including its legs
2.NounA cut of meat from the rump of an animal.
3.NounThe buttocks.
4.NounA remnant, as in Rump Parliament.
5.VerbTo turn one's back on, to show one's (clothed) backside to, as a sign of disrespect.
6.VerbTo fuck.
7.VerbTo cheat.
8.VerbTo ramble; to move (or talk) aimlessly.
9.VerbTo move (someone or something) around.