E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
A buffoon who performs pudding tricks, such as swallowing a certain number of yards of black-pudding. S. Bishop observes that each country names its stage buffoon from its favourite viands: The Dutchman calls him Pickel-herringë; the Germans, Hans Wurst (John Sausage); the Frenchman, Jean Potage; the Italian, Macaroni; and the English, Jack Pudding.