Rutterdamrotter

• Rotterdam rot → Double Dutch?

• Götterdämmerung: (German) Twilight of the Gods → Ragnarok or the End of the World in Norse mythology, and the title of the final part of Richard Wagner's operatic tetralogy Der Ring des Nibelungen ("The Ring of the Nibelung")

• Rotterdam: Dutch city
  • A Finnegans Wake Gazetteer

• Rotte: a river in the Netherlands that flows from Moerkapelle to Rotterdam