White wine or champagne made dirty by adding olive juice. The drink came about from an episode of the cartoon "Home Movies"
"Time to forget the book and make some drinks of my own. Let's see, wine, olive juice, voila! The Dirty Frenchman!"
by tofubot June 12, 2009

Person1: Why haven't we seen C around lately?
Person2: Oh, she's been doing the nerdy dirty with her physics lab partner.
Person2: Oh, she's been doing the nerdy dirty with her physics lab partner.
by evlrmm8t November 12, 2009

Pull apart the buttocks of your consenting sex partner, and as per the French greeting kiss each inner cheek from left to right whilst dragging your nose across their bumhole. Voila the dirty bonjour.
by Mr_Kevlar August 9, 2016

by sogasoidglsd July 12, 2017

by Haha goteeeemn September 12, 2017

This is performed by sticking your finger in your ass and then stirring that finger in someone's drink.
by SC_Dude February 1, 2009

by MrRazerblade July 21, 2016
