Aye, by the Powers! This be the Nineteenth of September, when ye strap on yer eyepatch, dust off the parrot, and spend the day talkin’ piratical, buccaneery, and even buckle the swash, by my oath. If you be wonderin’ after what all this be about, the details can be found at this fine site; ye can get yer piratical name here or here. Seize and sink me otherwise.
Found likewise in sommat different form here. With a curse.