/ Dictionary / Index M mama's boy: Meaning and Definition of Find definitions for: ma'ma's boy" Pronunciation: [key] a boy or man showing excessive attachment to or dependence on his mother. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Mamaroneck mamba Related Content Daily Word Quiz: philtrum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language