look up any word, like fap:
 
2.
The term "otaku" seems to have been introduced to anime fans in the US and other countries via Studio Gainax's "Otaku no Video 1985," a self-parody film.
Otaku, meaning probably "venerable house," refers to someone who has a devotion to a subject or hobby (not necessarily anime) to the point of not leaving home. For instance, an otaku fan of a particular movie star could quite possibly know all of the films s/he has been in, their birth date, time of birth, shoe size, favorite toothpaste, etc. Generally speaking, calling someone an otaku in Japan is an insult, implying that their social skills have atrophied or never even developed, due to their manic involvement in their chosen fandom.

In America, the term is used to denote a zealous fan, usually of anime and/or manga. Due to its introduction to most people's vocabulary through its tongue-in-cheek use in Gainax's film, "otaku" tends to have a much less dire definition overseas.

When dealing with Japanese people, however, it may be best to keep in mind the modern Japanese image of an otaku -- Someone who only leaves their home to eat or shop, if at all, with an overwhelming and unhealthy obsession about something. It can as easily refer to a stalker or sociopath as it can to a harmless anime buff.

Best to avoid the word altogether if one is not sure of the context in which it will be received.
Positive: "Oh, wow! Check it out: Neck-through, Floyd Rose locking tremolo and an optional push/pull coil tap!" (slaps forehead and laughs) "Man, I am such a guitar otaku, aren't I?"

Negative: "Stay clear of Toshi, man. He's such a RQ otaku, always online. Bet he's never actually even talked to a real-live girl before... You never know when he's gonna' snap, right?"
by Cobweb February 23, 2005
 
36.
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
 
37.
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
 
38.
Otaku is a Japanese word used for foreigners who are obsessed with Japanese culture. A lot of confusion has been made over the years, and people are starting to think Otaku is someone who stays home all day and does nothing but watch anime and jerk off to pictures. This is called a Hikikomori. The difference is that Otaku get out, and have a life, and pass in school, regardless by how much, and talk to other people, depsite the topic. Hikikomori are shut ins, and do leave the house for anything and don't socialize. For any reason. Whatsoever.
*Knock Knock*
Delivery Man : You there?
Hikikomori : *Fap fap fap fap*
Delivery Man: I have a package for a Mr. Smith
Hikikomori : *Opens door naked* Thanks! *closed door and faps*

Otaku 1: Hey, did you hear? They're coming out with a new season for Naruto!
Otaku 2:Naruto is gay, you have to watch anime that deals with Japanese life, like Clannad. You're a fake.
Fake-Otaku 1: No way, Bleach is better than anything.
Otaku 2: Whatever.
Japanese Guy 1: God-damn-it. I hate those Otaku's
Otaku 2: OMFG A REAL LIFE JAPANESE GUY!!! HIIIII!!!!
Japanese Guy 1: Fuck.
by ReaperFi April 12, 2010
 
39.
In Japan, the term OTAKU is normally deragatory, meant as an insult. It basically means 'lifeless loser who never leaves their house'.
In America and Canada, though, it is used to refer to anime/manga fans and sometimes video gamers. It is used to refer to somebody as a geek, opposed to a loser, and is not a deragatory meaning.
So it is important that if you go to Japan that you do not use the word without clearly stating what you mean.
Canadian: I could tell you ANYTHING about anime!
American: You are such an Otaku!
Candian: I know, right!
Japanese: Canadains and Americans are a little...odd...
by in-the-stars February 28, 2009
 
40.
Originally a Japanese term for "your house," "otaku" now refers to that bizarre suubculture that is obsessed with Japanese culture.

At least, that's what the otaku themselves would see it as. In reality they are a group of weirdoes so socially inept and obnoxious that other weirdoes cross the street to avoid them (on the rare occasions the otaku ventures outside). They really only like manga and anime, and seem to think that reading a comic or watching a TV cartoon originally intended for Japanese infant school students while wearing a too-tight shirt with random kanji characters emblzoned on it makes them a venerable Eastern sage.

The otaku believes that millennia of Japanese history, art and philosophy is irrelevant compared to a comic about bug-eyed schoolgirls battling robot space ninja goblins.
Otaku: "Worthless peasant gaijin! My weird enjoyment of comics that were written for children, despite the fact that I am a pasty grown man, means that my wisdom far outstrips yours! Can you smell sweat?"
by Muttering Master March 06, 2007
 
41.
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
 
42.
One who obsesses about something or someone to an unhealthy extent, sacraficing most, if not all, of their social life.

Often used (incorrectly) by American anime fans as a trendy term to describe themselves.
Correct usage: anata wa otaku desu. (You are a nerd.)

Incorrect usage: I like anime, so I'm an otaku. (This is, however, correct if the person saying it has no life outside of anime.)
by Nosferatu June 20, 2003