Top Definition
A term used to describe something extremely kool or a group of young guys that are just freaking amazing, and everything they do is looked highly upon.
Guy 1- hey who are those guys?

Guy 2- I don't know but, they're koolaso
by koolaso May 20, 2010

Free Daily Email

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

Emails are sent from We'll never spam you.