Top Definition
The practice of sticking as many dildos as possible in one's own butt. Usually as a competition.
Zach's butt tumbling record is 18! Amazing, he can really butt tumble!
by PowPowPow November 13, 2013

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.

×