Sounds like this is about the noises oysters make; not quite.
But there is a story about a pub in London (long since disappeared) called the Whistling Oyster and how it got its name.
Apparently, at the very beginning of the Victorian era in the Covent Garden area of London, in a courtyard behind the Drury Lane theatre there was an tavern, reputed for “the superior excellence of its delicate little natives” and its clientele of bohemians. One day, inside from one of the tubs of oysters, a strange and unusual sound was suddenly heard.
“The landlord listened, hardly believing his ears. There was, however, no doubt about the matter. One of the oysters was distinctly whistling or, at any rate, producing a sort of “sifflement” with its shell. It was not difficult to detect the phenomenal bivalve, and in a very few minutes he was triumphantly picked out from among his fellows, and put by himself in a spacious tub, with a plentiful supply of brine and meal. The news spread through the town, and for some days the house was besieged by curious crowds. That the oyster did whistle, or do something very much like whistling, is beyond all question. How he managed to do so is not upon record.”
