A person who takes pleasure from recieving sexual pain, and who also takes pleasure out of giving sexual pain. This type of pain may include, but is not limited to: biting, scratching, etc. A sado-masochist enjoys pain, just like any other form of stimulation.
She, being a sado-masochist, couldn't help but be aroused from the sudden pain of his bite, and proceeded to dig her fingernails hard into his back.
by rokkstarr August 16, 2007
by Luigi July 11, 2004
one who enjoys pain being done to themselves and others. people like these are slitters, sadists, etc.
the sado masochist loved the monster truck destruction derby, especially when he jumped in front of the cars.
by jdunmer1018 March 10, 2005