Hi Diddle Diddle is a play on the nursery rhyme of what origin?
Hi Diddle Diddle:  The title is a play on the nursery rhyme "Hey Diddle Diddle" and the use of diddle as a word for confidence trick. Hey Diddle Diddle: "Hey Diddle Diddle" (also "Hi Diddle Diddle", "The Cat and the Fiddle", or "The Pig Jumped Over the Moon") is an English nursery rhyme.
English