Weeaboo
"Weeaboo" is a noun/adjective derived from a Perry Bible Fellowship comic, reaching internet stardom after the term was used as a wordfilter for "wapanese" on /b/. Weeaboos, or the wapanese, are people who think that Japanese stuff is better simply because it is Japanese, and typically have an unhealthy obsession with the culture and media of Japan (such as anime) while simultaneously managing to know very little about it.
/tg/ tends to use the word to describe anything vaguely Asian in origin or inspiration, and generally as a derogatory term.