What is the definition of Pushed Blood Cells?

"Pushed blood cells are like the rebellious knights of the circulatory system - they're so eager to make an entrance, they can turn the very room into a battlefield. Just imagine a doctor's hands as they're pushing these blood cells out of a patient's veins, like a surgeon about to perform an operation on a giant, blood-thirsty lion."

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Edgy example sentence: "The detective's blood cell count plummeted after he accidentally pushed a carotid artery's blood cells into the patient's jugular vein during his 'gentlemen detective' stroll."