/ Dictionary / Index S saphead: Meaning and Definition of Find definitions for: sap•head Pronunciation: (sap'hed"), [key] — n. Slang. a simpleton; fool. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: saphead (Thesaurus) sap green sapheaded Related Content Daily Word Quiz: frugal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language