seal someone's fate
US /siːl ˈsʌm.wʌnz feɪt/
UK /siːl ˈsʌm.wʌnz feɪt/
1.
to make it certain that someone will fail or experience something unpleasant
:
•
His poor performance in the final exam sealed his fate for the scholarship.
•
The discovery of new evidence sealed the suspect's fate.