挂羊头,卖狗肉 meaning in Chinese

sell horse-meat as beefsteaksell dog-meat under the label of a sheep's headsell a pig in a pokehang up a sheep's head and sell dog-meattry to palm off sth. inferior to what it purports to behang up a lamb's head but sell dog's meatcry up wine and sell vinegarpass off fish-eyes as pearls