(intransitive) To make sport by playing ludicrous tricks.
Esimerkit
... were certainly the worst and dullest company into which an audience was ever introduced; and (which was a secret known to few) were actually intended so to be, in order to contrast the comic part of the entertainment, and to display the tricks of harlequin to the better advantage.
And kitten, if the humour hit / Has harlequined away the fit.