on the hook for
US /ɑn ðə hʊk fɔr/
UK /ɑn ðə hʊk fɔr/

1.
responsable de, redevable de
responsible for something, especially a debt or a difficult situation
:
•
After the accident, he was on the hook for all the repair costs.
Après l'accident, il était responsable de tous les frais de réparation.
•
If you don't pay, I'll be on the hook for the entire bill.
Si tu ne paies pas, je serai responsable de toute la facture.