Usually a BDSM term. Someone who enjoys physical pain and/or humiliation to great extremes; usually a submissive, but not in all cases. The word is generally applied to someone who 'can't get enough' pain and torture, similar to someone who enjoys promiscuous sex.
What I really need is a nice little painslut; all of my boyfriends have been pussies and even whined when I only whipped them.
by Aileen April 21, 2003