Verb: The act of doing a shit while on a toilet facing the wrong way with the intention of creating a mess when the shit slides down the front of the toilet.
After I lost all my money at the casino I got some revenge by going reverse daffy in the lobby shitter.

or

I arrived at the party and was shocked to see that a ginga had been invited so I pulled a reverse daffy and went home.
by Stitecin and Kangarine October 30, 2006
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