Old chestnut
01
老掉牙的笑话, 陈词滥调
a joke, story, or topic of discussion that has become repetitive and uninteresting
Idiom
Informal
Old use
例子
He keeps bringing up that old chestnut about his high school glory days whenever we get together.
每当我们聚在一起时，他总是提起关于他高中辉煌日子的这个老掉牙的故事。
