2 definitions by kawaiineko

1. (This is how it is used in Japan) Otaku means a person who sits alone and does nothing all day day and might watch anime, read manga, ect. In Japan, it is a term that is not taken as a complement.

2. (This is used in other places) An Otaku is a person who is obsessed in a fandom; usually Japanese. In other places (not Japan), it is not taken offensively.
1. Don't hang around with Haley, she is a major otaku.

2. That otaku can sing the hard to sing Japanese song and watches a lot of anime. (That sucked)
by kawaiineko December 24, 2014
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