jackanory - A British way to ask, 'What's the story?' Like a dumb kid as

A British way to ask, 'What's the story?' Like a dumb kid asking a question they already know the answer to.

My brother asked, 'Jackanory?' when he knew I had stolen his snack. I told him, 'You’re a f***ing idiot.'

At school, my teacher said, 'Jackanory?' when she knew I had cheated on my test.

My friend asked, 'Jackanory?' when he knew I had told him the same story three times.