Blackball \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.
Blackball \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.
2. To blacken (leather, shoes, etc.) with blacking.