V. To slap a person in the face with your penis, usually after breaking their knees with an inflatable squeaky baseball bat.
"That hooker was going to call the cops on me after i gave her a mr. duffy last night, so i had to kill her GTA style.
by Stevenson McShitts May 29, 2008
5 Words related to mr. duffy

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.

×