Top Definition
is when you're doing a chick from behind you simultaneously put your thumb in her ass.To accomplish this,you position your fist with your thumb pointing down, before insertion, the opposite of the traditional happy days "fonzie" thumbs up.
Hey, when i was doing your mom from behind, she asked for a reverse fonzie.
by C.J. October 29, 2003
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.