old chestnut
陳詞濫調、老掉牙的笑話或故事
口語·指老掉牙的笑話
英文釋義
a joke, story, or idea that has been repeated so often that it is no longer funny or interesting
例句
He told that old chestnut about the chicken crossing the road again.
典故來源
19世紀戲劇中常用陳腐笑話,chestnut(栗子)比喻反復使用的老梗。