Freaky Jason Share definition Flag A person who is on the edge. A person who seems capable of turning into Jason from "Friday the 13th" at any moment. That guy is a freaky Jason. He probably has his moms body buried in the basement. Freaky Jason by Marissa G. July 15, 2006 0 0 Get merch Get the Freaky Jason mug. Buy Now — $32.95 See more merch