In Mexico and Central America stands for monkey, APE, primate, mico. In several countries it is also synonymous with pre-teens, adolescents, which is located in the intermediate stage between childhood and youth, is used in colloquial 40 way; Argentina, Bolivia, Mexico, Chile, ) With tilde ( Chango ) It was the name of a King in the city of Oyo. It is the name in the Yoruba language of the orisha of lightning, Thunder, fire and justice. In Cuban santeria, syncretized with San Marcos and Santa Barbara.
In Argentina is a way loving call a young, usually from the inside of the country and more if it is of indigenous descent. The origin is most likely the aforementioned by FEDE. In addition he says " chango " or " monkey " a cargo truck to move the supermarket shopping; that can come from association with the pawn or Assistant that moves goods, which used to be a boy.