/ Dictionary / Index S splash guard: Meaning and Definition of Find definitions for: splash' guard" Pronunciation: [key] a large flap behind a rear tire to prevent mud, water, etc., from being splashed on the following vehicle. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. splash erosion splashy Related Content Daily Word Quiz: fidelity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language