Definition of descamisado in English:
 descamisado
nounPlural descamisados dɛsˌkamɪˈsɑːdəʊdesˌkamiˈsädō
(in Latin America) a very poor person.
 Example sentencesExamples
-  Upwards of 200,000 descamisados entered the capital city and demanded that Perón be their Leader.
 -  At her last speech, on May Day, her husband had to hold her up as she spoke to the descamisados.
 -  Her mammoth wage increases for her beloved descamisados resulted in overwhelming political support for her husband.
 -  But his deals with the United States had tarnished his reputation, and the descamisados were no longer the enthusiastic supporters of yore.
 -  She was a crucial component of that political structure and irreplaceable - as the leader soon realized when his economic policies began to strain his relationship with the descamisados.
 
Origin
  
Spanish, literally 'shirtless'.