/ Dictionary / Index B bullwhacker: Meaning and Definition of Find definitions for: bull•whack•er Pronunciation: (bool'hwak"ur, -wak"-), [key] — n. Western U.S. (esp. in the early 19th century) the driver of a team of oxen. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. bull trout bull wheel Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language