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A sexually transmitted disease, a beaver fever
After shaggin' this bird, tha doc told me I had caught a 'gash rash'
by Safecracker G September 10, 2004
the rash that surrounds a skanky cunt-hole, caused by excessive queef discharge.
Brooke has an immense gash-rash.
by bread infection November 07, 2005
Unsightly razor burn caused by inexpert shaving of the wordflange
These new Bic razors are total wank, they give me evil gash rash
by L June 27, 2003