text: Season 2 Episode 22: As I Lay Hiccupping / Mar...
  During Thunder God Johnny, Odin transports Johnny to a place called "Needleheim", where he has to fight the Frost Giant. In Norse mythology, there is a realm named Nifflehein, however this was the realm of the dead, who are neither damned nor blessed. It is ruled by Hela, Loki's daughter. The place where Frost Giants lived in according to Norse mythology was called Jotunheim, The realm of frost, rime, and ice.
  In Marine Moron, the old sea captain mentions he has seen a documentary about how dangerous the reef tide can be on the Discovery Channel.
  In the episode Thunder God Johnny, the horse that Johnny rides on to meet with the other gods is named Tingblad.