blackwash (plural blackwashes)
- (slang, New Zealand) A whitewash victory for any New Zealand national sporting team.
- (slang, cricket) A whitewash victory for the West Indies cricket team. Started in the 1984–86 "Blackwash" series of the West Indian cricket team in England in 1984.
- (medicine) A lotion made by mixing calomel and limewater.
- (slang, mining) public campaigns and advertising funded by the coal industry to draw attention away from environmentally unsustainable practices or to justify exclusion from carbon taxes.
- (politics) A villainization campaign
- (New Zealand victory): blackout
- (villainization): whitewash
- (transitive) To villainize, to present in a damaging light.
- (transitive) To blacken, to cover with a black color.
2004, Peter Plate, Fogtown, page 109:
- The masts of British frigates and U.S. warships blackwashed the piers at the Embarcadero.
1892, Henry Ward Beecher, Plymouth Pulpit: Sermons Preached in Plymouth Church, Brooklyn, Sept 1873-Sept 1874, Volume 2:
- I do not care whether a man whitewashes or blackwashes his fence, or whether he uses guano or barnyard manure, or what his mode of cultivation may be, the question is, Does he get good fruit?
- (villainize): whitewash