Silver Hard Enamel Pin Pain slut is a term coined by the BSDM community to describe a person, usually a submissive, who enjoys extreme pain. This pain could be either physical or mental. In the BDSM community, pain is seen as a way to increase sensitivity to pleasure and create a sort of endorphin rush that participants find pleasurable. This Kinky 2" Pin has 2 Rubber Backers to keep your pin in place!