tu quoque

And then they meet us with miserable tu quoques—tu quoques, gentlemen, which are the meanest form of logic, and, in my opinion, the most contemptible development of statesmanship.

I presented the mouth of the bottle in a slanting direction toward her. In an instant, she with her fingers contracted the lips of her tu quoque so as to produce a narrow curved stream, so correctly aimed that at least one-third actually entered the bottle.