wind-bag

It would be foolish to quarrel with that young wind-bag now.

The worker being that human wind bag, called an agitator; one who would find fault with the order of things even in heaven itself.

Your enemies say that you are little better than a wind-bag, and I verily believe they are not far wrong.

The new prefect sent down from Paris turned out to be a wind-bag.

The book had great success, but of what Mr. Carlyle calls the "wind-bag" nature.