Top Definition
When you ram your fist into the rectum of another.
Dude, I was with Jessie last night and I slipped her the Mr. Fisty. She screamed like a banshee.
by THE Mister Fisty April 29, 2010

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.

×