PlumSmuggler's definitions
The game a girl plays when a man is inebriated just to the point of ambiguous erections. She begins stroking, gyrating, and altogether slapping said penis in an attempt to reach consistent firmness.
Jim: Did you bang that chick last night?
David: Yeah, sort of, I had a couple too many drinks, but she flappy dicked me till my balls were black and blue.
David: Yeah, sort of, I had a couple too many drinks, but she flappy dicked me till my balls were black and blue.
by PlumSmuggler March 8, 2014
Get the flappy dickmug.