the devil to pay
US /ðə ˈdɛvəl tə peɪ/
UK /ðə ˈdɛvəl tə peɪ/

1.
大麻烦, 严重后果
serious trouble or severe consequences to face as a result of an action
:
•
If you break that vase, there will be the devil to pay.
如果你打破那个花瓶,就会有大麻烦。
•
She knew there would be the devil to pay if she didn't finish her report on time.
她知道如果她不按时完成报告,就会有大麻烦。