It’s a flavor of gossip that involves speaking spiteful or slanderous words about another who is not present and can do nothing in defense. It’s secretive, and the Bible actually mentions it by name in Proverbs 25:23: “The north wind brings forth rain, and a backbiting tongue, angry looks.”
Also: “Whoever secretly slanders his neighbor, him I will destroy; No one who has a haughty look and an arrogant heart will I endure” (Psalm 101:5).
Persecution Live 