Breadcrumb Home > Dictionary > Index B big beat: Meaning and Definition of Find definitions for: big' beat' Pronunciation: [key] — Slang. (sometimes caps.)Slang. rhythmic popular music, esp. rock-'n'-roll, notable for its prominent and persistent beat. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. big bang theory Big Belt Mountains TrendingHere are the facts and trivia that people are buzzing about. Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 12 Steps to a New Year New Year's Resolution to Slim Down? Martin Luther King Speeches Books of the Bible: Old Testament Books in Order ✖ Related Content Daily Word Quiz: limpid Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language