掛羊頭,賣狗肉 [ㄍㄨㄚˋ ㄧㄤˊ ㄊㄡˊ , ㄇㄞˋ ㄍㄡˇ ㄖㄡˋ; gua4 yang2 tou2 , mai4 gou3 rou4] to hang a sheep's head while selling dog meat (idiom); to cheat dishonest advertising wicked deeds carried out under banner of virtue ◄ ►