The flip-flop dance is a coordinative exercise, as well as a dance. The principle is: move a joint through the movement of another joint and gravity. It is a play of tension, relaxation and angles. Example: relax the muscles that hold your wrist, change between pronation and supination and let the hand fall by gravity. That's the basic principle. Through time you can play with it more and more, becoming more aware of all your choices. Looking into the interplay of tension and relaxation provides a fundamental understanding of movement.
Music: Jockey Full OF Bourbon - Tom Waits