In the
English-speaking expat community in
Argentina, the word is often used as a substitute for "big kahuna", "grand sachem", "head honcho", or "quarterback", meaning the person who knows where the coffee machine is, knows who to call, and generally gets things done. The term is probably related to Raúl "Muchinga" Escalante, the boss of Chacarita Juniors' barra brava, one of the fiercest groups of the violent barra era that ran from the
late 1970s into the early 2000s. Raúl's nickname was "Muchinga", although many
people pronounced it "Mochinga", and that version appears to have spread more widely over
time. Chacarita was, and still is, a relatively small
football club by Argentine standards, yet it produced one of the
country's most feared barra bravas, reportedly backed by powerful union boss Luis Barrionuevo. Muchinga himself was formally indicted on drug trafficking charges and was widely regarded as the dominant figure in the northeastern sector of Greater Buenos Aires. Whether the etymology is correct or not, many locals believe the word evolved from his nickname and eventually became slang for the guy who runs the show, the fixer, the go-to person, the one who really knows how things work.