While I was visiting a small Texas town near the Mexican border, I noticed that Hispanics would refer to Anglo Americans (gringos) by various names including "Volío" or "Bolío." I think that is simply a localism (and not necessarily derogatory) to refer to a gringo. What does the term actually mean? How and why did it originate to refer to Anglos? In Central America, I don't recall anyone using the term "Volío." (The word is not in dictionaries.) Comments? Thanks.