
Today is the birthday of English plumber Thomas Crapper, born in Yorkshire in 1836 and who, contrary to popular belief, did not invent the flush toilet, which had existed for centuries before his birth.
Crapper apprenticed as a plumber when he was a boy and as an adult started his own business, Thomas Crapper & Co. Ltd. He patented nine different innovative plumbing mechanisms, including the floating ball cock, which itself could have leant the English language a number of mildly offensive expletives, but instead it is his serendipitous or unfortunate last name, depending on how you look at it, for which we remember him best.
The name Crapper in fact has nothing to do with the familiar pejorative. Crapper is variation of the name Cropper, an occupational surname apparently related to agriculture. Crappe, according to Webster's Encyclopedic Unabridged Dictionary and numerous etymological sources, was one of a handful of words applied to discarded thing — the weeds growing among corn, the dregs at the bottom of a glass of beer, the waste products of rendering fat. In the 18th century, it was also the underworld slang for "money," but all these uses most likely derive from the much older Medieval Latin word crapinum, "chaff."
As historically amusing as it would be for Thomas Crapper to be the father of the flush toilet, he is not. That, however, has not stopped people from making childish jokes about his name, nor has it stopped the Westminster Abbey manhole covers that bear his name from being a minor tourist attraction.