an otaku is a word commonly used to describe someone who is either obsessed with Japanese culture or a geek who spends all his/her time watching anime and never leaves the house. these are both false; that is the definition of a weaboo. an otaku is simply a fan of anime and manga and stuff like that. not a geek who has no life; not a weaboo. but sometimes, otakus try too hard and do turn into weaboos. for a better idea of the difference between otakus and weaboos, read my definition on weaboo.
~Pauly-T-Swizzle
me: hey, do you watch anime?
friend: anime sucks.
me: no, you suck. anime is good.
friend: your such a weaboo.
me: no, im an otaku.
by Pauly-T-Swizzle April 20, 2013

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An otaku is a type of nerd or geek who loves anime. They also like anime related games or just video games in general.
I am an otaku and so are my friends.
by catato September 09, 2015

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In literal, it means "house"

Otaku is a Japanese name or title for people who are obsessed on anime, manga, drama CDs, etc.

It is also a word for obsession of anything (e.g. car, toys, transportation)

Although the people who are entitled to this didn't mind or being welcomed by the people or the society outside of Japan, this name is an insult or a taboo in Japan. Primarily because of their behavior and their lifestyle. The main issue is the "Otaku Murder Case" in the 1980s, where the case is that a man killed more than 5 girls because they are look like of this idols.

Otaku may or may not related to Weeabo.
Western Otaku: My friends and I are having a sleepover, talking about what anime we should watch next or how great Levi is.
Japanese Otaku: Who needs friends? Anime will take me someday!
by twofacedanonymous March 05, 2015

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A term that is miss-used by both the Japanese and other countries.

In Japanese its the honorific of home. meaning the person is a shut-in. They also refer to a community that visit certain places such as akihabara, Tokyo train station, ect. Otaku in America and other places is a term to describe fanatic fans of a certain thing ,mostly anime. In japan there are also other types of otaku such as train otaku "IE train station", Bridge otaku, anime otaku, music otaku, ect...

In America people think that it is being used wrong, but in actuality its just being used in the alternative term.

In japan the term is sometimes refereed to as something really bad. But their is a growing population that take the name otaku with pride. Demonstrations are being held. ect ect...
EX. how can a train otaku be an "otaku" if he actually leaves his/her house to go look at trains.

EX. how can an anime otaku be and "otaku" if he/she goes out to cosplay shops, akihabara, and other social events such as cons, "maid cafes", where the person HAS to meet other people.
by KoDuu July 16, 2010

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A Japanese word for person whom are prone to stay at home and watches anime/manga/video games. Although my friends and I like to mess around with that word saying like:
Goodbye my otaku brethern

Or
Fellow Otakus unite!
Or something like that

PS it is a negative word
Great I'm stuck with a non-otaku.
by Senpai Otaku-chan May 31, 2016

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Someone who is over obsessive about something; a fangirl or fanboy.
"Engineering Otaku."

"Shut up, Alchemy Otaku." (Quote: Fullmetal Alchemist, book 3)
by NoeruChan June 23, 2016

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A Japanese term that refers to the Japanese equivalent of a nerd or a geek but with an extremely negative connotation. Usually, otakus stay at home, don't go to school nor work, and don't try to do anything to better themselves or their societies and spend all of their time surfing the internet, play video games, or watch anime. The more extreme ones also sleep with pillow cases with anime characters on them and have entire rooms that are filled with nothing but anime goods which includes rooms full of anime figurines, which are sometimes found naked. Pretty much they are embarrassments towards Japanese society and the Japanese, themselves, believe this.

In America, however, anime fans mistakenly refer to themselves as otakus and has taken on a more positive connotation. But, otakus, in this sense, are hardcore anime fans. But it is still agreed upon that otakus in America are just as annoying as their Japanese counterparts since the ones in America believe that they know everything about anime, manga and sometimes fiction in general and they claim that they are never wrong in regards to their knowledge regarding anime and manga. Just like their Japanese counterparts, they love collecting figurines and have rooms full of nothing but things that are related to anime. The more extreme ones of these, however, are sometimes called weeaboos and actually wish that they were Japanese and worship the Japanese as if they were gods.
Otakus are infuriatingly annoying in both Japan and in America and it's generally not advised for someone to call himself an otaku, especially in front of a Japanese person since they look upon them with extreme disdain.
by Pfarrer October 01, 2014

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