Kick-ass

//ˈkɪkæs// adj, slang

Definitions

Adjective
  1. 1
    Rough, aggressive; powerful and successful. not-comparable, slang, vulgar
  2. 2
    Excellent, first-class. not-comparable, slang, vulgar

    "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."

Etymology

From kick + -ass.

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