What is the definition of Norwegian Blood Cells?

Ah, Norwegian blood cells! They're the unsung heroes of the circulatory system, but let's not get too sentimental here. These little blood cells are the result of a Norwegian tradition - or perhaps a Scandinavian binge-watching marathon. They're basically the blood of people who've had a bit too much fish for dinner, or a string of epic fishing trips. These cells are known for their unique shape - sort of like they're wearing a tiny fish costume for the whole ride through the bloodstream.

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Now, here's an unsettling example sentence: "The Norwegian blood cell detective couldn't crack the case because his DNA was as Norwegian as the sea, but he was missing the last piece of the puzzle – his Norwegian blood cell memory."