caper, shavie, gag, shine, waggery, antic, capriccio, practical joke, roguery, trick, monkeyshine, jest, rag, escapade, frolic, knavery.
" Yes, yes," replied Dido,
laying her finger to her lips.
John sighed, and whistled for Dido
I ought to be a Dido
and Niobe and Cassandra rolled into one.