(n.) a vagina that is infected with some sort of disease (not necessarily gangrene),appears generally unhealthy visually, or is displeasing to one's olfactory sense.
Ned: I am telling you bro, Erika is smoking hot, but when I got them panties off......man, it was like I was facing off your granny's gangrenous hole.

Neal: Dude....how do you know about my granny's snatch?
by Blenderhead1991 May 05, 2009

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