Also, cannon ball.
a missile, usually round and made of iron or steel, designed to be fired from a cannon
a served ball
that travels with great speed and describes little or no arc in flight.
anything that moves with great speed, as an express train.
made from a curled-up position with the arms pressing the knees against one's chest: a cannonball dive.
moving at great speed: a train known as a cannonball express.
is always a great word to know.
So is flibbertigibbet. Does it mean: