Gaucho n. : One of the native inhabitants of the pampas, of Spanish-American descent. They live mostly by rearing cattle.

Example:
What season should i wear Gaucho pants?

Taxonomy
gaucho, The Gaucho, Argentina, North American, Gauchos and the Vanishing Frontier, gaucho hat, El Gaucho, free encyclopedia, the Brazilian, the Argentine, in Argentina, Way of a Gaucho, Brazil, the North, influences, Brazilian state, American cowboys, Mexican.

Defination from the web:
gaucho could be described as a loose equivalent to the North American "cowboy" (vaquero, in Spanish) ... In Argentina, gaucho armies such as that of Martín Miguel de Güemes, slowed Spanish advances. Furthermore, many caudillos relied on gaucho armies to control the Argentine provinces. ...