lay something on the line
US /leɪ ˈsʌm.θɪŋ ɑːn ðə laɪn/
UK /leɪ ˈsʌm.θɪŋ ɑːn ðə laɪn/

1.
mettre quelque chose en jeu, risquer quelque chose
to risk something important, such as one's reputation or career, in order to achieve something
:
•
He decided to lay his reputation on the line by supporting the controversial proposal.
Il a décidé de mettre sa réputation en jeu en soutenant la proposition controversée.
•
The CEO was willing to lay his job on the line for the new business strategy.
Le PDG était prêt à risquer son poste pour la nouvelle stratégie commerciale.