1 definition by Manchizzle

Top Definition
Noun. A very chill and mellow person who enjoys the art of smoking blunts, pipes and all sorts of the marijuana plants. You use this word to describe someone who is totally random.
That stoned guy is so random, he must be a Koster.
by Manchizzle February 09, 2008
Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.