pass one's sell-by date

What is the origin of the idiom "dead in the water" and when to use it?

The idiom "dead in the water is believed to have originated in the context of sailing or boating, where a vessel that has lost power or momentum is said to be "dead in the water." This phrase is often used to describe a project, plan, or initiative that has stalled or failed to make progress. It can also be used to describe a person or organization that has encountered insurmountable obstacles or setbacks, and is unable to move forward.