Meaning of USER in English

n 1. a resident or citizen of the United States, used to avoid ambiguity of "American", which can refer to anyone from North or South America. ("The main pride of a Canadian is simply that he is not a USer.") Submitted by Bill Wickart, Washington County, OR, USA, 20-10-1997.

Slang English vocab.      Английский сленговый словарь.