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1.
A form of sex that involves getting pleasure out of giving pain and getting pain from dead animals.
I don't know if you want to date him, he's into supersadomasochisticnecrobeastiality. Unless you're into that sort of thing.
by DaWeirdo October 03, 2004
 
2.
having sex with a dead animal while you harm it and yourself.
"Supersadomasochistic necrobeastiality, it's when you get a hard on giving Lassie a fatality!"
by SSantos March 27, 2007