Gringo

A Gringo (male) or Gringa (female) (/ˈɡrɪŋɡoʊ/, Spanish: [ˈɡɾiŋɡo], Portuguese: [ˈɡɾĩɡu]) is a term, mainly used in Spanish-speaking and Portuguese-speaking countries, to refer to foreigners. In some Spanish-speaking countries in Latin America, gringo refers to someone from the United States, particularly a person who is a White American.

The word was originally used in Spain to denote any foreign, non-native speakers of Spanish. Although it has a generally neutral connotation, sometimes Hispanic Americans use the word as a derogatory term towards Americans, mainly but not exclusively white, and the derogatory connotation depends upon the context, body language or tone of voice used.

The word gringo was first recorded in Volume II of the Diccionario castellano con las voces de Ciencias y Artes y sus correspondientes en las 3 lenguas francesa, latina e italiana (Castilian Dictionary including the Words of the Sciences and the Arts, and their Correspondents in 3 Languages: French, Latin, and Italian, 1787), by Terreros y Pando, wherein it is defined as:

GRINGOS, llaman en Málaga a los extranjeros, que tienen cierta especie de acento, que los priva de una locución fácil, y natural Castellana; y en Madrid dan el mismo, y por la misma causa con particularidad a los irlandeses.

Gringos is what, in Malaga, they call foreigners who have a certain type of accent that prevents them from speaking Castilian easily and naturally; and in Madrid they give the same name, and for the same reason, in particular to the Irish.

...
Wikipedia