break a leg
祝你好運！
口語·演出前祝福好運
英文釋義
to wish someone good luck, especially before a performance or event
例句
You're going to do great in the play tonight—break a leg!
典故來源
源自戲劇界迷信，直接說“好運”會帶來厄運，所以用反話“摔斷腿”來祝福，祈求演出成功。