/ Dictionary / Index M meshugaas: Meaning and Definition of Find definitions for: me•shu•gaas Pronunciation: (mish"u-gäs'), [key] — n. Slang. foolishness; insanity; senselessness. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: meshugaas (Thesaurus) meshuga meshugana Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language