SMACK Definition Meaning - Merriam-Webster The meaning of SMACK is characteristic taste or flavor; also : a perceptible taste or tincture How to use smack in a sentence characteristic taste or flavor; also : a perceptible taste or tincture; a small quantity… See the full definition Games; Word of the Day; Grammar; Wordplay; Slang; Rhymes; Word Finder; Thesaurus; Join MWU