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1.
When a guy is screwing someone in the ass and right before he cums, rips out some of his partner's pubic hair, holds it up to his upper lip, and screams, "Huh-huh!" (in a French manner).
Before I ejactulate in my girlfriend's derriere, I'm going to commit a dirty pierre! Oui-oui!
by TheReverend April 04, 2004

Words related to dirty pierre

croissant dirty french hat pierre
 
2.
When you wear a red béret and have sex with your mother. Then you eat a croissant.
One time in gym class I gave this girl Caitlin a Dirty Pierre. Ooh La-La!
by PurpleDyke June 11, 2008