I will never forget the first time I was on the receiving end of a "Whatever" from my teenage daughter.
I had just given a well reasoned, entirely logical response as to why she couldn't have a party at the house while we were away for the night.
She looked at me, eyes narrowed with the contempt not even thinly veiled, and delivered a withering "Whatever".
It summed up her complete dismissal of everything I said, everything I was, everything I represented. And, in its own way, its quite brilliant. You can't argue with a "whatever".
It's conversation over.