/ˈmɪdldɪkər / noun
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.
Can also be
accomplished alone.