Y'a les deux yeux dans graisse de binnes.

He has both eyes in bean fat. Ooo...that suffers in the translation. It means that the person is all moon eyed, love struck over somebody.

One very useful expression to use when you have guests that just won't leave. You know the ones, it's two in the morning, your kids are asleep on the sofa, you have your P.J.s on, the coldcream is on your face and the curlers are in your hair, and still they're not getting the hint..."one last hit of coffee before you leave?"