cannonball

/K AE1 N AH0 N B AO0 L/
noun
  1. 1

    (artillery)

noun
  1. 1

    The act of running and jumping in a flexed position into a swimming pool to create a large splash, mimicking the flight and shape of a cannonball.

    โ€œThe New Yorker, 30 August 2004, p.40โ€

verb
  1. 1

    To jump/dive into water doing a cannonball landing.

    โ€œHe cannonballed into the pool, drenching us all.โ€

  2. 2

    To careen; to move rapidly

interjection
  1. 1

    Yelled when jumping/diving into the water, doing a cannonball landing.

Source: https://en.wiktionary.org/wiki/cannonball