Basic explanation:

As a saying, it is a metaphor for cruelty and greed.

Detailed explanation:

Also known as "eat meat without spitting out bones". Also known as "eating the dead without spitting out the bones". Metaphor for extreme greed and viciousness.

Part 1 of Zhou Erfu's "Morning in Shanghai": "Zhu Laohu, a bad guy who eats dead people without spitting out their bones, does what he says and does all kinds of bad things." Wei Wei Chapter 10 of the first part of "The East": "There is no honor, just defeat those guys who eat meat but don't spit out bones!" For example: These warlords are all guys who eat people without spitting out bones.

Source:

Chapter 27 of Duanmu Hongliang's "Cao Xueqin": "But this person is full of evil, eats people without spitting out their bones, has insufficient success and more than enough failure, so he can only To win over, you cannot offend."

Usage:

As a predicate, object, and attributive; refers to a person who is cruel. Rhetoric: metaphor, hyperbole.