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When a man is engaging in anal intercourse with a woman, and then swiftly pulls out and plows her vagina, filling it with her own feces.
Dude, I had this fine ass chica last night, and I totally gave her the poopgina.
by St. Even April 08, 2006
A vagina that is filled with feces. Whether it be human or not. The poopgina sometimes leaks more liquid based feces. This is the best case scenario.

I gave Barbara a poopgina, it started leaking. I thought her vagina was crying. This made me sad in the pants as well.
by -Picolo Jim November 09, 2007