1 definition by kgriff

Top Definition
Any person that when they bend over has hair coming out of their butt. Referred to as a "rainbow ass" because it is popping out as rainbows do from clouds.
"Look at that guys rainbow ass,no one wants one of those."
by kgriff January 05, 2012

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.