The first known use of the term snuff movie is in a 1971 book by Ed Sanders, The Family: The Story of Charles Manson's Dune Buggy Attack Battalion. He alleges that The Manson Family was involved in making such a film in California to record their murders.
Salò, or the 120 Days of Sodom (Italian: Salò o le 120 giornate di Sodoma), titled Pasolini's 120 Days of Sodom on English-language prints and commonly referred to as simply Salò (Italian: ), is a 1975 Italian-French horror art film directed by Pier Paolo Pasolini.
a pornographic film in which one of the actors is murdered during or after a sadistic sexual act. On the other hand, snuff means act of inhaling, breathing in; sound made when breathing in; powdered tobacco that is inhaled through the nose; burnt end of a candle wick.