/ Dictionary / Index H high-muck-a-muck: Meaning and Definition of Find definitions for: high-muck-a-muck Pronunciation: (hī'muk"u-muk', -muk'u-muk"), [key] — n. an important, influential, or high-ranking person, esp. one who is pompous or conceited. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: high-muck-a-muck (Thesaurus) high-minded high-necked Related Content Daily Word Quiz: simian Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language