寝皮食肉

Explanation: ① "Zuo Xianggong twenty-one": "However, the second son by analogy to animals, eat their meat and sleep Chen at its leather carry on." After "sleep skin meat" to describe the depth of hatred. ② by means chivalrous behavior or mental. 　　Source: "Zuo Xianggong twenty-one" and then two sons by analogy to animal, eat its meat Robinson sleep at his leather carry on. " 　　Examples: ~ Man do, do-not divided between the student. ★ Jin Yuan Hao-wen, "shot the tiger," poetry