Black"ball` (?), n.
1.
A composition for blacking shoes, boots, etc.; also, one for taking impressions of engraved work.
2.
A ball of black color, esp. one used as a negative in voting; -- in this sense usually two words.
© Webster 1913.
Black"ball`, v. t. [imp. & p. p. Blackballed (); p. pr. & vb. n. Blackballing.]
1.
To vote against, by putting a black ball into a ballot box; to reject or exclude, as by voting against with black balls; to ostracize.
He was blackballed at two clubs in succession.
Thackeray.
2.
To blacken (leather, shoes, etc.) with blacking.
© Webster 1913.