同义词： buttocks nates arse butt backside bum buns can fundament hindquarters hind end keister posterior rear rear end rump stern seat tail tail end tooshie tush bottom behind derriere fanny ass
以上来源于: WordNet
N an incompetent or ineffectual person: often used as a term of abuse 无用之人(常用作辱骂用语) [slang]
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