"chew somebody up and spit somebody out"的定义和意义

What is the origin of the idiom "chew someone up and spit someone out" and when to use it?

The idiom "chew someone up and spit someone out" originates from the metaphor of a powerful force or situation, such as a competitive environment or challenging experience, acting on an individual with the ferocity of chewing and subsequently spitting them out. The phrase is nowadays used to convey a sense of ruthless treatment, where someone is subjected to harsh circumstances that leave them figuratively broken or defeated.