diablerie(dee-OB-luh-ree) noun. 1. Sorcery; black magic; witchcraft. 2. Representation of devils or demons in words or pictures. 3. Mischievous conduct; deviltry.Diablerie has roots in many languages: from the French, from diable, meaning devil; from Latin diabolus,; from Greek diabolos, "slanderer," from diaballein, "to slander," literally "to throw across," from dia-, "across" + ballein, "to throw."