flip-flap

Etymology
.

Verb

 * 1) To flop or flap about.

Noun

 * 1) The repeated stroke of something long and loose.
 * 2)  A costermonger's dance.
 * 3)  A form of somersault or cartwheel.
 * 4)  A cracker.

Adverb

 * 1) With a repeated flapping movement.

Noun

 * 1)  flip (frontflip or backflip)