It leaped and arched its back with the snap of a whip crack.
Bindan's palm hit her desk with a sound like a whip crack.
There was a loud whip crack, and smoke jetted from the sides of the door.
The mention of that name was like a whip crack.
When he spoke again, his voice carried the whip crack of command, even at a whisper.
Retief's voice hardened to a whip crack with the last words.
A hard shift, the whip crack of a shot, two shots together.
He never heard the whip cracks; we put those in later.
They were airborne, and not a moment too soon as the whip crack of a shot testified.
He looked up at Magnus, and his voice was a whip crack.