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

The idiom "pass the buck" has its origin in American poker during the 19th century. In poker games, a marker or token called a "buck" was used to indicate the player who was the dealer. When a player did not want to assume the responsibility of dealing, they would "pass the buck" to the next player. It is commonly employed in discussions related to decision-making, accountability, and problem-solving.