to leave, to take off, to let slip, to miss, to give
Pas question de vous filer ma mallette.
There's no way I'm handing over my briefcase.
— Chute libre (1993)
C’est vous, les idiots, qui les avez laissés filer.
It's you idiots who let them get away.
— The Shadow's Edge (2025)
Le CIB doit les filer et les mettre sur écoute.
The CIB has to track them down and put them under surveillance.
— Infernal Affairs (2002)
Ne laisse pas filer les occasions.
Don’t let opportunities pass you by.