"the buck [stop] (here|there)"의 정의 및 의미

What is the origin of the idiom "the buck stops here" and when to use it?

The idiom "the buck stops here" can be traced back to the game of poker, where a "buck" was a marker that indicated which player was the dealer. The phrase is often used in business and political contexts to indicate that a leader or manager is willing to take responsibility for the outcomes of their decisions and actions.