“Rat King” is a phenomenon that happens when any number of rats “become stuck together with blood, dirt, ice, or feces.” This is both creepy and terrifying. I’ve seen this first-hand while working on helicopters. The rats will crawl in and band together to stay warm. As you can see, it doesn’t work too well.
Similarly, when Progressives band together under te rubric of Hillary, a Rat King is born.