This was apparently a witticism; at any rate, it elicited roars of laughter.
Aunt Agathe, always ready with a witticism, risked several jokes.
Urbanity he practised, not with jest and witticism, but by the courtesy of his demeanour.
A grin of self-approval at his own witticism closed this speech.
And deriving much comfort from this witticism, she went on her way.