Mon petit chou = My little darling.
[This has nothing to do with a cabbage, but with a kind of puff pastry filled with cream, in the shape of a cabbage.]
Faire ses choux gras d’une chose = To enjoy a thing that others despise.
Ciel
Remuer ciel et terre = To move heaven and earth; To leave no stone unturned.
Circuler
Circulez, Messieurs! = Move on, please! (cry of policemen).
Clair
Parler clair et net = To speak plainly.