French Mustache 

At the climax of sexual intercourse, the man ejaculates his man créme across the upper lip and adding an aristic swirl to each end. This gives the illusion that the women has a french mustache.

Dude my girl thought it was funny to use teeth while doming me last night, but I set her straight. I slapped a french mustache on that bitch

French Mustache by Kevin Sandusky March 10, 2011

French Mustache 

When you use any spreadable medium applied to each side of your penis so that when you wang slap the recipient(they must be unaware or unsuspecting), it draws a mustache across their upper lip. Precision and timing is a must.

Dude, I totally just "French Mustached" Scotty!

French Mustache by Daniel4564508 January 14, 2008

french moustache 

derrived from facial
the act of cumming on someone's upper lip

By splooging, Tom gave Cindy a french moustache

french moustache by Alex July 31, 2004