For those not old enough to remember the radio panel game 20 Questions, chaired by the wonderful Gilbert Harding.
For each round an unknown topic was chosen and read out by a hidden voice, out of the hearing of the panel of four, who were then allowed to ask twenty questions (answerable with only a yes or no) in which to guess the unknown topic. Included on the panel was the very prim-and-proper member of the nobility, Lady Isobel Barnett.
Don't know if this works in print!!

Hidden voice. "The next object is a man's penis - a man's penis."
Chairman. "Lady Barnett?"
Lady Barnett. Is it a man's penis?

Jim Carroll