the final nail in the coffin
a nail in {one's} coffinanother nail in the coffinthe final nail in the coffin
01
the last event, action, or circumstance that causes something to fail or end
Idiom
例
Rising interest rates were the final nail in the coffin for many overextended homeowners, pushing them into default and foreclosure.
The data breach was the final nail in the coffin for the company's already damaged reputation - customers lost all trust after that.
