The British Idiom – Blackball
Definition of Blackball
To be blackballed means to have a negative vote against you that blocks your admission to an organisation or club.
Examples of Usage of Blackball
I tried to become a member of that exclusive squash club, but someone blackballed me because they thought I was a bit of a black sheep. And inside those places, people are probably still getting blackballed by the sergeant at arms for not eating the crusts on the sandwiches.
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