chumengo is incorrectly written, and should be written as "Chulengo" being its meaning: I think that they referred to Chulengo, which is the offspring of a Guanaco. It is also a metal drum that is cut to the middle in lengthwise and United halves hinged, so that you can close. This structure is welded horizontally on a stand and is punched the top by one of its ends to add a curved fireplace as a tube, which gives it some resemblance to a guanaco1. In the bottom half is often put a layer of refractory material so that the heat does not attack the sheet metal, and a grill that is approximately level with the effected cut. It is used for cooking roasts. Used in Peru, Chile and Argentina.