羊よう頭とうを掲かかげて狗く肉にくを売うる

expression, godan verb (-ru)

false advertising; bait and switch; cry wine and sell vinegar

Idiomatic expression meaning to advertise something good but deliver something inferior; literally 'hang out a sheep's head but sell dog meat'. Used for deceptive marketing or pretense.

• あの店みせは羊よう頭とうを掲かかげて狗く肉にくを売うるような商しょう売ばいをしている。

  That shop does business like crying wine and selling vinegar.