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Meaning of whip-cracker

whip-crack•er

Pronunciation: (hwip'krak"ur, wip'-), [key]
— n.
  1. a person who cracks a whip.
  2. a person who exerts authority, esp. excessively or ostentatiously.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.