What is the definition of Hoped Blood Cells?

"Hoped blood cells" is a funny term that humorously describes red blood cells that somehow managed to land in someone's bloodstream without the best of intentions. Imagine this: "I hoped my donated blood cells would be ready to whisk away my aching legs, but instead, they ended up giving me the existential dread of not being able to breathe."

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Now, for an edgy example sentence: "The new cancer immunotherapy was so hopeful about blood cells that it decided to hijack the bloodstream, turning the once-vital lifelines into a ticking time bomb of panic in the body."