/jp/ - Otaku Culture

Does gaijin really mean not japanese, or just outsider in general?

For example, would i be weird for people say gaijin to a japanese person if he's not in japan? e.g. talking to a japanese person in america.

Similarly, would this be functionally the same in a fantasy novel, where outsiders would still be referred to as gaijin?

外人
naturally just being a conjugation of outside and person, is it unique distinct to the land of japan or is it a general term for outsiders from a native stand point?

I ask because I'm drawing a doujin where a native american girl is brutally raped by a large gang of colonizing english men and i'm wondering if she should refer to the men who are forcing themselves onto her and destroying her purity with their cocks as gaijin.