Japanese word/adjective which roughly translates into "infatuated", "extreme fanatic", or "obsessed to the point of being borderline deranged."

mainly used to describe the Wapanese people who watch ridiculous amounts ofanime. they, in turn, will use the word to dsecribe themselves, as if they are actually proud of being otaku. they don't know that the word has a negative meaning to it.
1: I'm so otaku, I have all the latest Yu-Gi-Oh things, and I just bought the new Ayumi CD! So ureshii!

2: Jesus Christ...
by KRHimself September 03, 2004
Someone who is obbsessed, and has no life outside of their obbsession. It's an insult in Japan. Mostly said like "anime otaku". Someone who is obbsessed with Japanese animation.
Not all otaku are bad.
by C-chan November 06, 2003
a 12 year old that watches Bleach and Naruto and thinks they are completely immersed in japanese culture. See Weeaboo
Bob: I know all about japan because I watch Naruto!
Bill: no u are a weeaboo
Bob: No I'm otaku and proud
by sylveon November 24, 2013
Many people assume that one who enjoys Japanese anime and manga is automatically labeled as an 'Otaku'. This is completely untrue. Cosplay and the love of anime and manga does not make you an otaku.

An otaku is simply one who over-obsesses a certain hobby, in most cases anime and manga. Typically, this is a negative thing to be called in Japan, although North Americans have begun to take a liking to the word.
American person one: Steve knows everything about Love Hina. He's such an otaku.
American person two: Yeah, he'd be so glad to hear that.
---
Japanese person one: That Tsutomu Miyazaki sure was an otaku.
Japanese person two: Yeah, what a psycho.

by Kchan March 06, 2006
There's two different meanings to this word. The English one and the Japanese one. Who knows how otaku got translated to huge anime/manga fan. I do have a shirt that says Otaku...
Anyways.

English: Huge anime/manga fan. (Me)
Japanese: Insult. Someone who perfers staying inside all day. (Still me)
English: I am an otaku.

Japanese: ...I'm somewhat of an otaku. Yes, I need a life. Though I will do something with my life once I'm old enough to get my own house.
by ~Jay~ January 04, 2006
fanatic; this Japanese word is used in the common language of anime fans to denote themselves.
She's more of an otaku than I could ever be; she's seen over 26 anime series!
by Vertigo September 02, 2002
Otaku means OTAKU. Those who don't search for the definition will understand the true meaning of Otaku.

Created by the Genius of Zeus and Hades
Get the Otaku out of here!
All the ladies are lining up for my Otaku!
Your argument is Otaku!
I would like to Otaku you.
by MasterOfOtaku September 09, 2012

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