/ Dictionary / Index S slap-bang: Meaning and Definition of Find definitions for: slap-bang Pronunciation: (slap'bang'), [key] — adv. Brit. Informal. slam-bang. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: slap-bang (Thesaurus) slap slapdash Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language