/ Dictionary / Index M mack: Meaning and Definition of Find definitions for: mack Pronunciation: (mak), [key] — n. Slang. a pimp. mack Pronunciation: (mak), [key] — n. Informal. mac. Mack Pronunciation: (mak), [key] — n. (Cornelius McGillicuddy), 1862–1956, U.S. baseball player and manager. a male given name. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: mack (Thesaurus) MacIver Mackay Related Content Daily Word Quiz: overture Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language