Hi Cavediver,
Both your quote and that of Xongsmith were attributed to Churchill’s sparring with Lady Astor, but it may be apocryphal.
Nancy Astor, Viscountess Astor - Wikipedia
(See end of wiki article).
One quote I believe was true which always creases me up is the verbal spar between Churchill and George Bernard Shaw and conversed by telegram to each other:
Shaw: Here are two tickets to the opening performance of my new play Winston old boy - bring a friend - if you have one.
Churchill: Regret unable to attend first performance - will attend another - if there is one!