carte blanche
/ˈkɑːtˈblɑːnʃ/noun
1
- mass noun complete freedom to act as one wishes or thinks best全权, 自由处理权：
we were given carte blanche.
我们被授予全权。
2
- (in piquet) a hand containing no court cards as dealt（皮克牌中）没有花牌的一手牌。
词源
late 17th cent.: French, literally 'blank paper' （i.e. a blank sheet on which to write whatever one wishes, particularly one's own terms for an agreement）.