whapping

/W AE1 P IH0 NG/
verb
  1. 1

    To strike hard and suddenly.

  2. 2

    To throw oneself quickly, or by an abrupt motion; to turn suddenly.

    โ€œShe whapped down on the floor.โ€

Source: https://en.wiktionary.org/wiki/whap, https://en.wiktionary.org/wiki/whapping