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1 definition by The Nagus

 
1.
A combination of the words "poo" and "pussy" to form one word relating the use of the asshole as a pussy. Often, but not necessarily always, used in the case of a mtf transsexual.
I think I broke her ass-hymen, her poosy was bleeding all over me last night.
by The Nagus June 20, 2011