Someone, usually Caucasian, but not always, who is very interested in the various cultures of Asia, commonly known as the Orient,
such as languages, writing systems, traditions & architecture.
The orientalist may study to an extreme to amass as much knowledge about Asia as they can.
Boys who enjoy yaoi (a genre in Japan that contains sexual and/or romantic relations between two men); literally translates to "rotten boy"; corresponding female : fujoshi