Top Definition
Vaginal wetness that has dried into a fine or coarse powder from friction during vigorous doggy style sex.
Him: *feeling the bed sheets after having sex for an hour* "Baby what's this powdery stuff all over the bed??"

Her: "Oh that's my hoo-hoo dust, you were tearing it up back there!" *sweeps residue off bed, goes to pee*
by Smashworthy March 31, 2011

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