Top definition
To bail out on doing activities with friends without even telling them you have decided to do so.

Note: Can become a permanent state if not addressed quickly by caring friends.

Plural: Koosting Koosted
Me: You hear from Kyle? He said he MIGHT be interested in heading out tonight, but I think we was just Koosting me.

Eric: Nah let's just go, I hit him up too he Koosted me too. Getting tired of that guy.
by jay_nez February 03, 2010
Get the mug
Get a koost mug for your cousin James.

Available Domains :D