ugly American

Alternative forms

 * Ugly American

Etymology
From the novel The Ugly American (1958) by and  (though the character in the novel is only physically ugly and otherwise morally upright).

Noun

 * 1)  An American government representative, tourist, or businessperson who, in dealing with people of other nations, is haughty, rude, meddlesome, chauvinistic, or jingoistic.