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.