as dead as a doornail


(as) dead as a doornail

1. Definitively dead. (Doornails were hammered in a such a way that they could not be reused.) I poked that squirrel with a stick and, yeah, it's as dead as a doornail.2. Totally defunct. That idea from last week's meeting is dead as a doornail now that the CEO has vetoed it.See also: dead, doornail

as dead as a doornail

Really dead. Doornails, which provided strength and decoration, were hammered into the wood and then clenched for additional grip. Because a doornail was bent, it could not be used again, which made it even deader. A more recent phrase is “as dead as last year's tennis balls.” In the era before year-round indoor tennis, they would have lost their bounce before the start of the next season.See also: dead, doornail