When a dude tries to penetrate and girls cunt with his dick and it folds up like an accordion.
Most likely the guy is drunk or really high before the phenomenon. After you accordion dick a girl, the guy has to yell, "You've been accordion dicked, bitch!" Then the sweet-ass-dude has to bellow like an accordion, "Whoooom!"
by Pat N, Mark W, and E.J. December 02, 2007