blackball
/ˈblækbɔːl/verb
with obj.
- reject (a candidate applying to become a member of a private club), typically by means of a secret ballot（尤指以无记名投票方式）拒绝（申请者加入私人俱乐部）。
词源
late 18th cent.: from the practice of registering an adverse vote by placing a black ball in a ballot box.