Breadcrumb Home > Dictionary > Index M mud wasp: Meaning and Definition of Find definitions for: mud' wasp" Pronunciation: [key] any of several wasps, as the mud dauber, that construct a nest of mud. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. mud volcano mud-wrestling ✖ Related Content Daily Word Quiz: umbrage Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language