Entry 2 senses · 2 variants Webster, 1913 Smacking /(smăk"ĭng)/ approx. · Smack·ing · IPA /smˈækɪŋ/ n. a. 01 n. A sharp, quick noise; a smack. 1. A sharp, quick noise; a smack. “Like the faint smacking of an after kiss.” — Dryden. 02 a. Making a sharp, brisk sound; hence, brisk; as, a smacking breeze. 1. Making a sharp, brisk sound; hence, brisk; as, a smacking breeze.