Girl that enjoys having sex with fecies.
Wow! Rhonda is a sex rat..last night she told me to shit on her titties and smear it upon both of us while having amazing sexual intercourse. What a great sex rat!
by Head dick November 01, 2007
Matted section of hair on the back of a long-haired guy or gal after a night of debauchery.
Ew look at that sex rat - I know what he was up to last night.
by teej haystack May 24, 2014

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