an informal grouping of militant, mainly anarchist, protesters who act together during anti-capitalism, anti-war, etc, protests, often wearing black hoods and black clothing
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
How to use Black Bloc in a sentence
The group seems to blend “Black Bloc” anarchist street violence with social-media campaigns.
It can feed the fury of black-bloc anarchists and the rage of neo-Nazi gangs.
Right-wing nuts can use it; so can Black Bloc anarchists and, for that matter, conventional criminals and extortionists.
According to Motaparthy, large numbers of detainees are accused of membership in the Black Bloc, an anti-government protest group.
There are a handful of Black Bloc kids, and they are like 18 or 19 years old.Medea Benjamin and Code Pink Protest the RNC in Tampa | Lynn Waddell | August 28, 2012 | THE DAILY BEAST