noun. Like otherworldliness, but the other worlds are replaced with buckets of ewwwwwwww.
Real citation: “The proposed unit of Squickliness is the milliWinger, named for furry artist Doug Winger. An alternative unit is the Shudder, equal to the number of milliseconds the victim shudders after encountering the squick-inducing image or concept.”
Made-up citation: "Squickliness is in the eye of the beholder, according to the skullfucker."