Floofcheck (2) (Definition): Checking on a human’s location by a feline.
In Use: “Leaving the cats asleep where he found them, he went into the bathroom, and quietly closed the door. Within a few seconds, several cats were at the door, trying to conduct a floofcheck on his location.”
Michael Seidel, writer 
Mine do this as well. A closed door is certain to invite a floofcheck!
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Yes, a closed door is an invitation to conduct an immediate, urgent floofcheck. But they are just worried about your well-being. Or, that you may have another cat in there. Or, that you’re eating something.
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