1. Lighting/Electrics. Film/video term for extension cord, specifically an Edison (NEMA 5-15) cable. 2. Fabrication. Also used to describe the "gun" end of a MIG welder. 3. Rigging. A vertical wire rope sling used when a hoist's chain is not long enough to reach the bridle. 4. Audio. Short musical phrase to punctuate an onstage action or plot point. See http://www.shockwave-sound.com/stinger.html . Also known a a music sting.