1 definition by Ari...

A byproduct of having really nice, sexy lower abs and being skinny enough so that your pelvic bones and lower abs form lines

This word was coined by a GRP cabin in girlsville during the summer of 2004, and has spread like mad to describe guys who are fucking studs.
Ari: yeah my def is the shit, too bad i'm such a fatty and dont have a creasnis...oh btw where did nev go?
Hannah: fuck, that guy has such a sexy creasis, lets have a creasnis sit on stratton bald and lose our virginity, and then flick random objects off. ...tuma' ball tuma' ball...
Ari: Bitch!
Hannah: thats not funny
David: this will kick so much creasnis
by Ari... January 11, 2007
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