The first phrase I learned in French was la Grand Cataclysme. It sounds a bit ominous I know, but there is a logical explanation. It was one of the opening words of the narration of the wonderful cartoon Les Mondes Engloutis or Spartakus and the Sun beneath the Sea as it was called in English. But since Norwegian television never dubs anything, I and all my peers went around talking about la Grand Cataclysme. I suppose there are worse phrases.
( cut for rather a lot of media )