Naco (fmn. naca) is a pejorative word often used in Mexican Spanish to describe the bad-mannered and poorly educated people of lower social classes. It does not have a direct equivalent in American English and culture, although the term 'redneck' is somewhat similar.[1]

A naco About this sound na'ko (help·info)is usually associated with lower socio-economic classes and/or the indigenous, but it also includes the nouveau-riche. http://en.wikipedia.org/wiki/Naco_(slang)