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1.
A vagina so nasty it's as if you have to pick the scabs off before penetration is possible.
That girl's so nasty I bet she has a Crusty Trout.
by BrewTat August 09, 2008
 
2.
A vagina so covered in scabs and sores that it looks as if the scabs must be picked before penetration is possible. (This term originated in Portland, OR)
"Man, don't go home with her - she's a Crusty Trout"

"That girl's so nasty, I bet she has a Crusty Trout"
by BrewTat July 28, 2008