Floppy; The Segraves Floppy

The act of a male slightly spreading his legs and swinging the genitals back and forth causing them to hit the front and back of the pelvis, creating a "Flop" sound. Can also be performed during the dance of the Hula Floppy. Sounding simple in theory, most mens sachels' are to sensitive and not large enough to withstand the force of swinging.