The Venn intersection of
awesome and
kick-ass.
Alternatively: the subset inclusive of members of the both the set of things that are
awesome, and the set of things that are
kickass
ie: Things that are both
awesome and also
kickass.
First known usage: December 30, 2004 by Joshua "Danger" French, in an IM conversation regarding polar bears, documented in a blog-post by Bex Schwartz entitled "Crossing the North Pole with a Curtain Rod and an Old Duck."
Once, I saw a unicorn go after a baby harp seal and he totally impaled the harp seal on his horn. It was astoundingly kickawesome, even though I rarely endorse the harm of aquatic mammals.