Similar to the "Beans above the Frank", when one exposes his genitals and twists them so that the balls are above the penis. Only applies when there is a significant amount of pubic hair, to give it that fly look. A prank of the nut game or fag game
Guy 1: "Dude, it got really bored at work so I got Charlie with the fly."
Guy 2: "Dude, that guy is such a fag."