the thin, invisible film of bacteria that coats every bathroom after flushing the toilet
Turn the faucet off with a paper towel after washing your hands so they don't get contaminated with shit dust.
by Monsternova September 28, 2010
Top Definition
The remaining feces sprinkles on the bottom of the bowl after the toilet is flushed from taking a dump
Hey Scott you left shit dust again!
by ScooterPants December 20, 2009

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