seal someone's fate
US /siːl ˈsʌm.wʌnz feɪt/
UK /siːl ˈsʌm.wʌnz feɪt/

1.
selar o destino de alguém, condenar alguém
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.
Seu mau desempenho no exame final selou seu destino para a bolsa de estudos.
•
The discovery of new evidence sealed the suspect's fate.
A descoberta de novas evidências selou o destino do suspeito.