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The act of three or more people jacking off or fingering themselves or others in the same room. This group maybe be of mixed genders or only one gender.
Jim: Dude, I was at Elliot's house the other day and he got some chicks to come over and jack us off.

John: Is there always group masturbation at Elliot's?

Jim: Yeah it's Elliot's house. Amazing things happen all the time.
by Jack Alof July 16, 2008