"Winston," she roared. "You are drunk, and what’s more, you are disgustingly drunk."
Churchill, surveying Bessie, replied, "And might I say, Mrs. Braddock, you are ugly, and what’s more, disgustingly ugly.
But tomorrow," Churchill added, "I shall be sober."
However, it is often used (satirically) to replace the word drunk in places and situation where it would be wise to avoid explicitly stating one's intention to become intoxicated.