Definitions

1. verb

to exclude or ostracize someone or something, especially in a social or professional context.

“The committee blackballed the applicant due to her controversial past.”

2. noun

a vote or decision to exclude someone or something, especially in a social or professional context.

“The company received a blackball from the investors due to the financial losses.”

3. noun

a ball that is painted or colored black, often used in various games and sports.

“The pitcher threw a blackball to confuse the batter in the game.”