猪八戒照镜子，里外不是人

猪八戒照镜子，里外不是人:

Literally means:

Zhu Bajie, the pig, looks into the mirror, but neither the inside nor the outside is human being

Actually means:

猪八戒 is a character in the classic literary work Journey to the West, who looks like pig, so when he looks into the mirror, both the images inside and outside of the mirror are of pigs, and neither is like mirror a human.

It figuratively means even though one has made some efforts, he receives blames from both sides. Derogatory

猪八戒，小说《西游记》中的人物，长得像猪，照镜子时，镜子里面和外面都是猪的样子，而不是人的样子。

猪八戒照镜子，里外不是人，比喻做了事情不但不讨好，反而受到周围的人的埋怨或指责。具有贬义色。