Insheenity Share definition Flag Acts or performing acts relating to or what Charlie Sheen has done first. Jim: Hey man, I just snorted a pound of coke and drove my fiat in my house Rob: Thats Insheenity! Insheenity by TheCableGuy February 22, 2013 0 0 Get merch Get the Insheenity mug. Buy Now — $32.95 See more merch