From Longman Dictionary of Contemporary Englishrumprump /rʌmp/ noun 1 [countable]HBA the part of an animal’s back that is just above its legs2 → rump steak3 [countable]HBH the part of your body that you sit on – used humorously SYN bottom4 [singular] British EnglishREMAIN/BE LEFT the part of a group or government that remains after most of the other members have left
Examples from the Corpus
rump• Mbeki also helped make space, though apparently reluctantly, for a rump of the old internal Mass Democratic Movement leadership.• Labour was reduced to a rump.• Her rump burned as though a bonfire had been lit under it, and she realised she was standing upright.• I got under her at the strategic moment, and placing one shoulder under her vast rump, heaved her up.Origin rump (1400-1500) From a Scandinavian language 