What is the definition of Thank Blood Cells?

"Sure, let's talk about 'thank blood cells' in a way that's as surprising as a blood spatter at a birthday party! A 'thank blood cells' is like saying, 'You're the unsung heroes of life, quietly saving me from a blood clot apocalypse and ensuring I don't end up in a vat of lemons.'"

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Now, here's an edgy example sentence: "The detective's next clue? A blood cell's thank you note in a plastic bag with a warning: 'Danger - May Cause Temporary Loss of Memory.'"