grin·go /ˈgrɪŋ(ˌ)go/
  外國佬
  Grin·go n.  Among Spanish Americans, a foreigner, especially an American or sometimes an Englishman; -- often used disparagingly or as a term of reproach.
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  gringo
       n : a Latin American (disparaging) term for foreigners
           (especially Americans and Englishmen)