S.U.D.

Shitting upside down. When you take a shit while your upside down.
It's like have your own personal "Ground Hogs Day" S.U.D.
by Nymesis October 13, 2009
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S.U.D.

Small Unintentional Defecation
Mike experienced a sudden S.U.D.
by Big Mike D. May 03, 2006
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