- The end of the backbone of an animal, with the parts
adjacent; the buttock or buttocks. - Among butchers, the piece of beef between the sirloin and the
aitchbone piece. See Illust. of Beef. - The hind or tail end; a fag-end; a remnant.
Meaning of 'rump' (Princeton's WordNet)
1 . rump
[ n]
Meaning (1): - the fleshy part of the human body that you sit on
Example in sentence:
are you going to sit on your fanny and do nothing?;