A word used to describe the most kick ass person, in a group of kick ass people.
Jenna is the kickassiest
by DougConnell December 07, 2006
Derived from "kicks ass". Means to kick ass so much that no other can kick ass any more. I, kelly, have created it, not you, or you, or you. ME.
"dude!! that is the kick assiest guitar I have ever seen!"
by Emo McAngstalot January 22, 2005