deaf as a post

Unable to hear well or at all. Potentially offensive. I hope Grandpa wears his hearing aid to dinner tonight because he's as deaf as a post without it. After years of listening to loud rock music, I'm deaf as a post.

deaf. (*Also:as ~.) When my cousin was a teenager, she played her drum set without ear protection, and she was as deaf as a post by the age of twenty-five. Mark can't hear you even if you shout; he's deaf as a post.

Also, deaf as an adder. Unable to hear or to listen, as in Speak louder, Grandpa's deaf as a post. The first simile has its origin in John Palsgrave's Acolastus (1540): "How deaf an ear I intended to give him ... he were as good to tell his tale to a post." It has largely replaced deaf as an adder, alluding to an ancient belief that adders cannot hear; it is recorded in the Bible (Psalms 58:3-5).

If someone is as deaf as a post, they are very deaf. My Dad is as deaf as a post.

Unable to hear or to listen. The simile dates from the sixteenth century, when J. Palsgrave wrote (Acolastus, 1540), “He wotteth ful lyttel how deffe an eare I intended to gyue him . . . he were as good to tell his tale to a poste.” It caught on and has survived to the present, outliving such similes as deaf as an adder (first recorded in the Book of Psalms, 58:4–5), deaf as a beetle, and deaf as a white cat. See also fall on deaf ears; turn a blind eye/deaf ear.