To express delight that something went awfully wrong for someone (they might have had it coming to them or deserved it in someway, or you might dislike them). For example if an insult they used backfired.
A torturing device used on men to get them to do something they normally wouldn't. A torturing device that connects to the nipples using crocodile clips causing severe and acute pain. Sophisticated manipulators can deliver an electric shock to the nipple adding to the persuasive effectiveness of the device.
