Otaku is a person who watches anime and enjoys watching it.
X - Hey, you watch anime right?
Y - Yes!
X - What was that term in Japanese for a person who watches anime?
Y - Otaku!
X - Oh, so you're an Otaku?
Y - Correct!
by sefunight September 19, 2022
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Someone who doesn’t shower and gives off a horrible smell

Someone who doesn’t put on deodorant
“Bro, I sat behind a dude in my last class that smelled like an otaku. It was the worst”

Please take a shower, or put on deodorant so you won’t smell like an otaku.
by bruh2100 October 22, 2019
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anyone who don't like to go out have fun,instead,he or she spend time at home doing stuff like watching TV,surfing online. In other words,indoor people.
Yang is really a Otaku boy,he even spends his spare time at home instead of having fun outside the house.
by hmmbmm April 9, 2010
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Someone who doesn’t want to admit that they are a weeaboo
Shut up, I’m not a weeaboo! I’m an otaku!!
by Boodian January 15, 2018
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A otaku is a person, usually male, watches SERIOUS anime. They usually stay in the comfort of their home but come out when there are expos. If they do reach these expos, he/she will probably spend their whole life's allowance on: Squish pillows, manga, super rare colectibles, and chibi figures. When at home, they will have most of their job money put on trying to hold on a subscription to things like VRV or Funimation (also Crunchyroll!). A otaku ranges from 5 years old (keep on watchin' Pokemon.), to mature level, which is like 17 or older.
Why does he wahtch so much so much anime, that Otaku.
by otaku December 2, 2018
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An Otaku is a person whos upset with Anime/Anime video games/manga,.. Etc

Most of otaku don't express themselves or call themselves otaku ( since people in japanese take otaku as an insult ) because they are shy, sensitive, may or may not suffering from depression, like a person who have living in their house no contact with human interaction
If your friend/family or a person you know is an otaku then please be nice and solf but yet tell them to go out side speak to some people,.. Etc

And yes otaku or weebaboo are trash
Otaku = the loser of the family
Weeaboo = the adopted one thats no one ask for or wanted
OtakuA: Hey..
WeeabooB: Ohaiyooooooo !! ~ ^_^
Normal personC: Sup'
Weeaboo: So A i heard that you are an otaku, can sensei tell me what anime should i watch ?? @-@
OtakuA: Ah no no, you must have miss heard i'm not an otaku i'm just happen to have a liking to anime!

Normal personC: Dude we know you are an otaku man, we have seen your room
by KarmaPixelsLeTrash September 9, 2017
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A male/female whom is in love with a fictonal character. The character is often from an anime,or dating simulator. Otakus are oftenly over obessed with the character. No matter the gender,the gender if the fictonal character is often male.
“She’s such an otaku.”
by ex dee July 5, 2019
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