It refers to an older sayings "Kick ass first, take names later," or "Shoot first, ask I am going to start kicking ass and taking names if the design is not ready on.
if somethings kick ass, its really cool. Great! As in it kicks the ass of all else. It can be inanimate and still kick ass. lol- inanimate, like busted's career.
Kick ass definition: to be impressive, esp in a forceful way | Meaning, pronunciation, translations and examples.