The act of masturbating in the tune of the theme song of Teenage Mutant Ninja Turtles. Finally you ejaculate as the theme song says "Turtles in a Half Shell."
Me and my girlfriend were messing around and I "Kowabunga Fapped" in her face.
by Nukeman June 13, 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.

×