- [countable]
the round area at the top of the back legs of an animal that has four legs （兽类的）臀部 He slapped the horse on the rump. 他拍了拍马的臀部。
- [uncountable] (also rump steak [countable, uncountable])
a piece of good quality meat cut from the rump of a cow 臀肉牛排 - [countable, usually singular] (humorous)
the part of the body that you sit on （人的）屁股蛋子 - [singular] (British English)
the small or unimportant part of a group or an organization that remains when most of its members have left （团体或组织的）无足轻重的残留部分 The election reduced the party to a rump. 这次选举后该党已沦为微不足道的少数党。
Word Originlate Middle English: probably of Scandinavian origin; compare with Danish and Norwegian rumpe ‘backside’.