/ Dictionary / Index R rub-a-dub: Meaning and Definition of Find definitions for: rub-a-dub Pronunciation: (rub'u-dub"), [key] — n. the sound of a drum when beaten. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: rub-a-dub (Thesaurus) rubaboo Rubáiyát of Omar Khayyám, The* Related Content Daily Word Quiz: gregarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language