Entry 1 sense Webster, 1913 Backbiting /băk'-bītˌ-ĭng/ · Back·bit·ing · IPA /bˈækbˌaɪtɪŋ/ 01 n. Secret slander; detraction. 1. Secret slander; detraction. “Backbiting, and bearing of false witness.” — Piers Plowman.