Why do the British love fart jokes so much? Rude Britannia, a British comic art show at the Tate in London, sheds some light:
Going too far, getting away with it, pushing your luck there's something schoolboyish about British rudeness, about being quite the naughtiest kid in the class. And how quickly the connoisseur of British humour moves from naughtiness to bodily functions. The Fifties cabaret duo Flanders and Swann had a routine called "Mum's Out, Dad's Out, Let's Talk Rude", which climaxed with the line: "Pee, poo, belly, bum, drawers". One looks at the high number of bottoms and willies in the Rude Britannia show, and marvels at how fundamental our sense of humour has always been.