Definition
This idiom indicates that if a certain event occurs, someone will be extremely angry, and there will be serious negative consequences.
將有麻烦
If you lose my tools again, there'll be hell to pay.
如果你再次弄丟我的工具，後果會很嚴重。
If this report isn't finished by the deadline, there'll be hell to pay.
如果這份報告沒有在截止日期前完成，後果會很嚴重。
If she finds out we ate her cake, there'll be hell to pay.
如果她發現我們吃了她的蛋糕，後果會很嚴重。