To hoodwink or deceive someone. This term comes from—and long survives—the custom of wearing a wig (except in the British legal system, where judges and barristers still do so). One writer suggests that it alludes to the slippage of the wig of a judge, who is temporarily blinded by a clever lawyer. In any event, it was used figuratively in a quite general way from the early nineteenth century on, on both sides of the Atlantic. “He ain’t so big a fool as to have the wool drawn over his eyes in that way,” wrote Frances M. Whitcher (The Widow Bedott Papers, 1856).