Breadcrumb Home > Dictionary > Index B bad egg: Meaning and Definition of Find definitions for: bad' egg' Pronunciation: [key] a person who is bad, dishonest, or unreliable; a good-for-nothing: a bad egg who had served several years in prison. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. bade Baden ✖ Related Content Daily Word Quiz: glissade Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language