look up any word, like blumpkin:
 
1.
The act of passing someone - typically in a crowded and noisy place, such as a bar or concert to avoid detection - and purposely touching/rubbing the front of one's pants to their person.
(at a concert)

Janet: Where's Phil?
Richard: He took off to mingle.
Janet: You mean he went crotch dusting.
Richard: Yeah.
by Mattydreads December 09, 2008
 
2.
The act of lining up and pressing the anus up with the opening of the vagina and passing gas. The Gas enters the vagina as a fart but exits as a quiff.
Guy 1 - "I got away with crotch dusting some broad last night.."
Guy 2 - "Diiiiiirty"
by nineninenine January 13, 2010
 
3.
The act of farting while someone is spooning you.
My girlfriend kept crotch dusting me while we were spooning.
by angle3034 November 01, 2013
 
4.
When a man sits on a woman's vagina and farts.
Ann wasn't fond of Rick's attempt at crotchdusting her, but that didn't stop her from trying to queef on his cock.
by Cracker Mcgee October 11, 2009
 
5.
The act of lining up and pressing the anus up with the opening of the vagina and passing gas. The Gas enters the vagina as a fart but exits as a quiff.
Guy 1 - "I got away with crotch dusting some broad last night.."
Guy 2 - "Diiiiiirty"
by nineninenine January 12, 2010