During his visit, the 37-year-old True Blood hunk started talking about his Magic Mike character, Big Dick Richie, when O'Brien asked him if there was "a move" Manganiello could show him.
"Alright, okay, fine," the actor said after considering the task for a few seconds. "If you're gonna make money as a male stripper, the move is the body roll."
Manganiello taught O'Brien how to do the body roll and also came up with a stripper name for the late night host, "Big Red."
Notable deaths of 2014 [PHOTOS]