Top Definition
The act of perfroming oral or mutual masterbation of the digits to a female whilst she is operating a motor vehicle.
"Dude we took a road trip last weekend and I went muff-driving in 14 different states! Buiiiiiii."

"Susan, Im super worried my parents will find out Jake was muff-driving me when I hit that tree on 7th Ave last week..."

"We just met, and this is crazy, but I'm gonna muff-drive the shit out of you."
by SCOONLAN August 19, 2012
Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.