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A substance that is thrown into doorways to ward off those one can not trust.
Bitch, I'm gonna throw some brick dust on this doorway so you can't get me, Pussy!
by Mary Anne Mason December 30, 2005
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A homosexual act; The act of one man getting his penis sanded off by a belt-sander while the other male is sitting underneath the sander receiving all the bloody mess from above while masturbating.
-"dude how'd the trip go?"
-"pretty good, totally docked then got brick dust from Krazy Kyle."
by Lasagna.lover November 09, 2010
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