hikikomori n. a state of social withdrawal or willful anomie. (source: Double-Tongued Dictionary)
Further reading
The English language has been greatly enriched by borrowings from the languages of Asia. Barely scratching the surface, we have from Japan skosh, tycoon, tsunami, origami, yen, kimono, futon, and karaoke. From Chinese comes yen, kowtow, gung ho, and...
The Kong in the name of the 1933 movie King Kong, probably alludes to the Congo in Africa, the home of gorillas. Previous movies used a form of that name as well; Kongorilla, for example. In the 1950s, the English name of the Japanese movie monster...