When two gay men(most of the time cowboys) have an orgy This term originated from the T.V. program, "Family Guy".(also known as cowboy buttsex).
Person 1: "Dude, what is that noise coming from the tent?"
Person 2: "Oh, those guys must be having a sadamahee."
Person 1: "Oh ok, I was just wondering."
Person 2: "Oh, those guys must be having a sadamahee."
Person 1: "Oh ok, I was just wondering."
by LeakyFaucett1 March 30, 2011
Get the sadamaheemug.