A well-known phrase

Ever wondered where this phrase comes from?

That old chestnut

This most often refers to a frequently repeated joke but can apply to any trite or stale phrase. It comes from an 1816 William Dimond play, Broken Sword, in which Zior misquotes his line, saying instead: the thick boughs of ‘an acorn’ tree… Pablo jumps up shouting, Captain, a chestnut…this is the twenty-seventh time you’ve told the story and it was always a chestnut…