Webster's Revised Unabridged Dictionary · 1913

Blackball

Blackball ({not transcribed}) , noun

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 ({not transcribed}) , transitive verb

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.