a blank cheque
成語所屬單字cheque
a blank cheque — 慣用語
1. a signed cheque with the amount left empty, so the person receiving it can write
1.慣用語
釋義
a signed cheque with the amount left empty, so the person receiving it can write in any amount; also used figuratively to mean complete freedom or permission to do whatever one chooses
例句
The manager gave the design team a blank cheque to create the new logo.
Handing someone a blank cheque is risky because they could write any amount.