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To let out a long fart while walking around a room so as to evenly disperse the smell. This action can either confuse potential smellers as to the culprit OR ensure that everyone gets a whiff. Variation of crop dust.
Fraternity House

Kyle gets up off couch and walks across the living room letting out a fart with a smile on his face.

Mike says: You bastard, you crap dusted us, didn't you!
by osteoace October 22, 2007
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2
to fart in some ones face with there mouth open
i swear it was almost a crap storm in your face but it was just a crap dust
by bubba2356 March 12, 2008
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