/ Dictionary / Index M Murphy's Law: Meaning and Definition of Find definitions for: Mur'phy's Law' Pronunciation: [key] the facetious proposition that if something can go wrong, it will. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Murphy bed murra Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language