The Punch in question is the main character of the classic British seaside puppet farce – the grotesque and sadistic serial killer who dispatches everyone he meets with a giant stick while screeching: “That’s the way to do it!”
The story of Punch and Judy, such as it is, changes depending on the puppeteer – or ‘Professor’. Over the centuries, Punch’s victims have included his wife, Judy, his own infant child, a policeman, a crocodile, a doctor, a hangman, a skeleton, Death and even the Devil.
As the hook-nosed, squeaky-voiced Punch struts about his red-and-white puppet booth, he is clearly satisfied with his evil deeds – hence the expression.
Though the Punch and Judy show is most closely associated with the Victorian seaside, the male character originated in the 16th-century Italian theatre movement commedia dell’arte, in which he was named Pulcinella – or, in English, Punchinello.
The first recorded performance of such a show in England was staged in the 1660s, when celebrated diarist Samuel Pepys described it as being “very pretty”.