Meaning of minga by furoya

I add to the definitions given the meaning lunfarda: in the Río de la Plata it is used as an expression (rather, an exclamation) to deny, despise, also try to "little" and even "nothing" the value of something. The origin is not entirely clear, but it most likely comes from some Italian dialects where minchia is interpreted as "mierda", and is used just as in Spanish and lunfa. Although a cross with Mink'a Quechua can be suspected, already known in South America and explained by colleagues JOHN and Jorge Luis Tovar Díaz, which is associated by the euphemism of using 'minga' not for a community work but to do among several a poorly paid task, "where they are paid minga". I take this opportunity to mention that the use of swear words as an exclamation is very common, so the meaning published by Ferdinand could also be related to this lunfarda.