What is the origin of the idiom "kick the bucket" and when to use it?

The idiom "kick the bucket" has uncertain origins, but it likely dates back to the 16th century and may be related to the idea of someone standing on a bucket with a noose around their neck in preparation for hanging. The action of kicking the bucket out from under oneself would lead to death by hanging. Over time, the expression evolved to signify the act of dying more generally, often in a humorous or colloquial manner.