(n) A rank collection of dust, formed by years of dead skin, dried farts, and dandruff that collects on office chairs or anyplace else people put their gross asses.
Philly was doing his 'Ace Ventura' bit when he slammed his face onto an office chair. You should have seen the gigantic cloud of ass dust that exploded out of it.
by wilsonhenderson January 19, 2010
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The same as titty sprinkles...but for asses. The dust a fairy sprinkles on young girls asses around 13 or 14 years of age to enlarge the ass. Not to be mistaken with this so called "puberty".
That girls ass is huge...I guess the ass dust came early for her.
by Tonkpils November 11, 2007
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1. The act of completely destroying at a specific field; compare to "kicking ass".
2. Being absurdly good at ping pong.
3. Having sex with someone in their ass.
1. Man, I dust ass at Call of Duty!
2. Woke up to 16 yr old Ariel Hudson dusting ass in Ping Pong for USA!! btw, when did BB gun become an Olympic sport?
3. It's my bday so I dusted her ass ln lol
by georgeward December 11, 2012
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those goddamned dry sugar cookies with the nauseatingly sweet frosting you can get at Kroger or at a cheap birthday party
Friend: Dude, did you go to my cousin's party?
Me: Yeah, they had ass dust cookies!!
by SUBM4CH1N3 March 21, 2023
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When you spread the ass cheeks apart to do an ass rinsing with your tool , the dust of dead skin cells , being dead or just a filthy non showering crumb , in short the hard plate of dried extrement starts to break down releasing the particles into ones atmosphere
Her ass dust poofed up into clouds so dense I could not see what was INFRONT of me is what happened when I spread her cheeks to pleasure her from behind also know as back door, fart hole , rectum , up the bum no babies hole
by The bossiest May 9, 2022
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