A backstabber that gets a friend to introduce him to his cheating lover's boyfriend or husband to become best pals with another guy and cover his tracks as he cheats and backstabs.
The middledicker, a new form of flipping the bird, involving one buddy's hand and the other buddy's boner.
Taking a fist and holding it up like you would be flipping someone off, your buddy would then line up his erect penis behind the fist where the middle finger would be, thus creating the illusion of flipping the bird.