gadjin
Gadjin is a term commonly used in Japan to refer to a foreigner. The word is derived from the English word "gaijin" (外人), which literally translates to "outside person." While "gaijin" is a more formal and sometimes less polite term, "gadjin" is generally considered more informal and casual. The usage and perception of both terms can vary greatly depending on context and the speaker. Some Japanese people use "gadjin" neutrally, simply as a descriptor for non-Japanese individuals, while others may perceive it as less respectful than alternative phrases.
The term is not exclusive to Westerners and can be applied to people of any non-Japanese nationality.