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A Scumwhore is a woman which holds no values above her own instant satisfaction. The scumwhore will lie, cheat and steal you blind at first opportunity. A scumwhore is often undiagnosed, but if she was to consult professional medical staff, she would often qualify for a diagnosis relating to dyssocial functioning, for example a narcisstic or psycopathic personality.

A female social parasite that holds zero moral qualities
"I was looking for a female escort to accompany me for dinner, but all I could find was these scumwhores crawling the street looking for a quick fix"

A junkie street hooker often qualifies as a scumwhore
by Twin_Peaks December 19, 2011