/ Dictionary / Index S slather: Meaning and Definition of Find definitions for: slath•er Pronunciation: (sla'ur), [key] — Informal. Informal. —v.t. to spread or apply thickly: to slather butter on toast. to spread something thickly on (usually fol. by with): to slather toast with butter. to spend or use lavishly. —n. Often,a generous amount: slathers of money. complete freedom. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: slather (Thesaurus) slater slating Related Content Daily Word Quiz: endear Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language