Word Origin & History
proprietary name registered by Geo. A. Hormel & Co. in U.S., 1937; probably a conflation of spiced ham. Soon extended to other kinds of canned meat. In the sense of "Internet junk mail" it was coined by Usenet users after March 31, 1993, when Usenet administrator Richard Depew inadvertently posted the
same message 200 times to a discussion group. The term had been used in online text games, and it was from the comedy routine in British TV show "Monty Python's Flying Circus" where a restaurant's menu items all devolve into spam.