Top Definition
Gash Rot has two meanings

1. the effect of a girl not washing her vagina for more than a week (this is tempoary gash rot)

2. what happens when a girl gets an STD and leaves it even if she knows that its there (this is permanent gash rot)
GUY ONE: I heard she has gash rot
GUY TWO: Really?
GUY ONE: Yeah its like an old basement down there, dark dank and moldy
by Liam [302] October 31, 2006
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