overplay your hand
成語所屬單字hand
overplay your hand — 慣用語
1. To fail because you think your position is stronger than it really is.
1.慣用語
釋義
高估自己
To fail because you think your position is stronger than it really is.
例句
He overplayed his hand in the negotiation and lost the deal.
The union overplayed its hand by demanding too much.