Horse-race sound

Usage examples of whipcrack.

Chariot wheels and whipcracks, his father had once called them, when Aspar was very young.

Horace and three other mounts reared their forepaws against the iron-sheathed wood, and Raj felt a jar that ran all the way up his spine to whipcrack his neck and make his teeth meet with a clack.

Another parachute flare burst, and she threw herself down and crawled as machine-gun bullets whipcracked through the air where she had been.

Whether the President heard the whipcrack from the sound barrier, travelling on a narrow line down the flight path of the bullet, is not known.