After living in Japan for a while you start to notice certain personality types popping up in the international community, particularly among English teachers.
There's the "weeaboo," a fairly recent character; the paripi (party people), who hit every nomikai (drinking party); and the gaijin (foreigner) hunter.
That last one is a term you'll usually find online: a Japanese person, often a woman, who is looking exclusively for a non-Japanese partner. They've had it with the outdated attitudes of Japanese men and are searching for something different.