Definitions include: Normally used as slang in describing the "near-felonious promiscuity" of a woman. As in where one could say that the tramp that gave him herpes, took more pricks daily than any seamstresses pin-cushion could in a week. Hence: "That bitch is such a Pin-cushion! I bet you anything she gave me strains of herpes that haven't even been discovered yet. I'm afraid to go to the doctor cause they'll probably name one of them after me and shit. Like I'm the fucking Christopher Columbus of STD'S or something."