kick ass /kɪk æs/verb 3exclamation 1kick-ass adjective 2forms 3 verb3 •(informal, vulgar) To win decisively.Did you win? We didn't just win, we kicked ass. •(informal, vulgar) To beat to a pulp; beat upI have come here to chew bubblegum and kick ass. And I'm all out of bubblegum. — 1988 •(informal, vulgar) To be very impressive.The soundtrack to this film really kicks ass! exclamation1 •(slang, vulgar) Used to express happiness or a feeling of accomplishment.Kick ass! I just got my friend to stop playing that stupid song! kick-ass adjective2 •(slang, vulgar) Rough, aggressive; powerful and successful. •(slang, vulgar) Excellent, first-class.I guess it helped that they were one of the few bands with an environmental sensibility but, more importantly, they played some kick-arse rock'n'roll. — 2005 formskicked ass · kicking ass · kicks ass