(as|) dead as a (doornail|herring)
1
dead without a doubt
The idiom "dead as a doornail" has uncertain origins but has been in use since at least the 14th century. This phrase was likely popularized by Charles Dickens in "A Christmas Carol." It is now used to imply that something is commonly used to describe something that is completely lifeless or inanimate, with no possibility of revival or recovery. It is often applied to objects, ideas, or situations rather than living creatures.
- The cop announced that the body in the dumpster was dead as a doornail.
- When the sons ran forward he was dead as a herring, with a broken neck.
- After years of neglect, the old house was now dead as a doornail, with broken windows and a crumbling roof.
- The proposal to build a new shopping mall was rejected, making the project as dead as a doornail.
- When the engine of the old car sputtered to a stop, it was as dead as a doornail, leaving the driver stranded.