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.

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.