otakuyoudaoicibaDictYouDict[otaku 词源字典]
"(In Japan) a young person who is obsessed with computers or particular aspects of popular culture to the detriment of their social skills", Japanese, literally 'your house', in formal speech also meaning 'you', used by some anime and manga fans as an affectedly formal way of addressing others with similar interests.[otaku etymology, otaku origin, 英语词源]