Interesting to note: In Hungarian we even use "nyávog" as another word for "whining". So in this case it could not only mean a cat impersonator but someone who is whining. "Ne nyávogj már!" = Stop whining! You're welcome ;)
If the question addresses a human being the correct answer should be: Are you whining? This was my answer and it was not accepted. I know cats 'meow' but I do not chat with cats.