Old chestnut

What is Old chestnut?

Old chestnut definition and meaning on Dictionary terms:
A stale joke, story, or saying, as in Dad keeps on telling that old chestnut about how many psychiatrists it takes to change a light bulb. This expression comes from William Dimond’s play, The Broken Sword (1816), in which one character keeps repeating the same stories, one of them about a cork tree, and is interrupted each time by another character who says

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