挂羊头卖狗肉

挂羊头，卖狗肉:

Literally means:

hang a sheep's head but sell dog meat; try to palm off something inferior to what is purports to be.

Actually means:

It literally means hanging up a sheep's head but selling dog meat. It figuratively means doing something bad under a reputable name, or deceiving people by hiding up the truth.

It is usually used to accuse treachery propaganda or advertising. It is derogatory.

挂羊头，卖狗肉，挂着羊头不卖羊肉却卖狗肉。比喻用好的名义做牌子，实际上做的是不好的事情，或者隐瞒实情骗人。

多用来指责欺瞒性质的宣传或广告。具有贬义色彩。