The term is also used for a piece of music in the repertoire that has grown stale or hackneyed with too much repetition.
A plausible explanation for the term given by the Oxford English Dictionary is that it originates from a play named The Broken Sword by William Dimond,[1] 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: "Chestnut, you mean ...
I have heard you tell the joke twenty-seven times and I am sure it was a chestnut."
The play was first performed in 1816, but the term "old chestnut" did not come into widespread usage until the 1880s.
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