Knocking the bones and sucking the marrow means to knock the bones to suck the marrow, which is a metaphor for the exploitation and oppression which is extremely cruel.
Sources:
1. In the past, people seeking the way of the world knocked the bones and sucked the marrow, and stabbed the blood to feed the hungry.
2, to the tyrannical levy of the officials, the so-called knock bone suck marrow, to this and also no bone can knock no marrow can be sucked carry on.
Usage of idiom: This idiom can be used as predicate, determiner and dative in the whole sentence, but it has a pejorative meaning.
Near synonyms: scrape the bones and suck the marrow, take by trickery.
Antonym: philanthropic.
From: The Five Lanterns of the Society of Yuan.
Identify the form: marrow, can not write Sui.
Discernment: There is a difference between "knocking out the bones and sucking in the marrow" and "collecting and collecting by force". The difference between the two is that they are more brutal in nature, and the means used can be varied. The means of levying and collecting is only levying and collecting.
Excellent Phrases
1. The landlords exploited the peasants by the cruel means of bone-knocking and marrow-sucking.
2, When this dog official was in office, he did his best to knock the bones and suck the marrow.
3. The landlords exploited and squeezed the peasants to the utmost.
4, but straight is knocking the marrow of the piracy behavior, it let the purchase of genuine players benefit from the ocarina.
5. In feudal society, the majority of peasants could not tolerate the exploitation of the landlord class, and constantly rebelled.
6, flattery, knocking on the bone and sucking the marrow of the person, no high official position. And the poetry, calligraphy and painting of the three greats of Zheng Qi, only did a humble cold official, the gun inside the broad mansion of Huatang.
7, this gang of dog officials entangled together, the name of the program, the exorbitant levies, to the people to knock bones and suck the marrow.
Reference: Baidu Encyclopedia - knocking bones and sucking marrow