cannonball

Meanings

Noun

• The act of jumping (typically into a swimming pool) with the legs bent and the arms wrapped around the knees to create a large splash, mimicking the flight and shape of a cannonball.
• Something that moves fast.
• A served ball that travels with great speed and describes little or no arc in flight.

Verb

• To jump/dive into water doing a cannonball landing.
• To careen; to move rapidly

Origin

• cannon + ball from being a round ball that is fired from a cannon.