/ Dictionary / Index W wacke: Meaning and Definition of Find definitions for: wack•e Pronunciation: (wak'u), [key] — n. a poorly sorted sandstone containing fragments of rock and minerals in a clayey matrix. Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. wack wacked-out Related Content Daily Word Quiz: banshee Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language