Plural of piquetero
. Groups of protesting/picketing activists from the unemployed movement in Argentina, or who use similar tactics such as road-blocking.
A fuller definition is given for the singular.
Spanish for "picketer", the term has come to refer in English mainly to the Argentine unemployed workers' movement who have spearheaded repeated waves of protest involving blocking and barricading roads. The term is now sometimes used for those who use similar tactics, even in non-Spanish-speaking countries.
The piqueteros responded to the IMF visit by blocking roads across the capital and marching on the central bank building, where they clashed with police.