/ Dictionary / Index B billy club: Meaning and Definition of Find definitions for: bil'ly club" Pronunciation: [key] billy (def. 1). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Billy Budd* billycock Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language