Definitions
1.nounA rejection; a vote against admitting someone.
2.nounA black ball used to indicate such a negative vote."Regardless how many other people may have voted to approve a candidate for membership, a single blackball will reject the candidate."
3.nounA kind of large black sweet; a niggerball.
4.nounA substance for blacking shoes, boots, etc. or for taking impressions of engraved work.
5.verbTo vote against, especially in an exclusive organization."If you're not from a moneyed, well-connected family, you can count on getting blackballed from the fraternity."
6.verbTo ostracize.