/ Dictionary / Index M muscle beach: Meaning and Definition of Find definitions for: mus'cle beach' Pronunciation: [key] a beach where young men display their muscles, engage in calisthenics, etc. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. muscle musclebound Related Content Daily Word Quiz: belligerent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language