Otaku terms for new Otaku's

Term related to a type of people

• Chibi - Something you call someone or something that is small and very adorable
• Loli - They are usually cute, innocent looking female anime characters that are very young or looks very young
• Senpai - Directly translates to "senior" but technically refers to someone who has more experience than you in terms of employment, school, or something else
• Kohai - This word translates to "junior" but technically is used to refer to people who have less experience to you in certain aspect like work, school, maybe even at a sport
• Oneesan - This is used to refer to your "older sister" but can also be used to refer to a girl/woman who is a bit older than you in general if used in an informal setting
• Oniisan - Commonly heard in anime and manga, this word means “older brother” which you can use for an actual older brother just an older (but still young) boy or man.
• Sensei - This directly translates to “teacher”.
• Waifu - Borrowed from the English word, “wife”, this refers to an anime/manga/game/ character or even an idol who a person feels affection towards.
• Bishounen/ Bishie - Very good looking male. This can be used for both real people and fictional characters.
• Bishoujo / Bijin - These are terms used to refer to very good looking females which are used for real people and fictional characters.
• Meganekko - From the work めがね (megane: eyeglasses), these are anime or manga characters that wear eyeglasses. They are usually quite bookish characters who are somewhat attractive.
• Mangaka - This is what you call a person who creates manga(authors).
• Seiyuu - This refers to voice actors who voice anime characters.

Anime/ manga related words

• Shounen - This is a category of anime and manga that targets boys and young adults. This involves action and fighting packed story plots.
• Shoujo - This is a category of anime and manga that targets young girls and mainly revolve around cute romance and relationships.
• Dandere - This is a character/person that is usually reserved and emotionless but they change and only open up to certain characters they truly trust.
• Tsundere - This is a character/person that usually has a cold and hard personality on the outside but is actually very affectionate and warm on the inside.
• Yandere - This is a character/person that starts out really sweet and nice but ends up being very obsessive and even violent. Quite scary, really.
• Yuri - As a Japanese slang word for “girls love”, this word refers to girls in a lesbian relationship. This also refers to a category of anime and manga that revolves around romantic female relationships.
• Yaoi - This is a Japanese slang word for “boys love”. This word also refers to a category of anime and manga revolving around gay relationships.
• Fan service - These are scenes in anime/manga/series where they are designed specifically to please or tease fans. This may involve popular characters involving a bit of nudity or different outfits.
• Harem - This is an anime/manga storyline that revolves around a guy or girl who is surrounded and somehow romantically involved with the main character.
• Doujinshi - Technically quite similar to Western fan-fiction, these are fan created stories that involve characters and themes from existing manga, anime, game characters and maybe even idols that they love.
• Ecchi - This is the action or a word that involves sexual themes and even nudity, except it is not as explicit as hentai.

Words you just need to know!

• Kawaii - One of the most commonly used words in Japanese media, かわいい (Kawaii), means cute or adorable.
• Baka / aho - ばか (Baka) and あほ (Aho) both mean “stupid/idiot” and is also a common word you usually see or hear in Japanese media. 
• Kimoi - Technically a fusion of two Japanese words, namely, 気持ち(kimochi: feeling) and 悪い (warui:bad). Together, they make きもい(kimoi) which is a slang word for gross or disgusting.
• Gakuran - The uniform for Japanese middle school and high school students
• Valentines day - It is quite similar to Western Valentines day except the only difference is how in Japan, women mostly give gifts (handmade chocolates) to people/guys they like and romantically like. Men usually don’t do anything on Valentines day! 
• White day - Exactly 1 month after Valentines day, this is the day every girl/woman waits for! Guys who have received chocolate on valentines day have the opportunity to “respond” to women's feelings by giving them a gift back! Unfortunately, women who don’t receive a gift from the guy they gave chocolates to on Valentines day immediately know that they just got rejected. 
• Giri Choco - This is chocolate given on valentines day EXCEPT it is “obligation” chocolate or chocolate with no feelings attached. This is the chocolate you give to a male co-worker, male boss, or any male person you are obligated to give chocolate to just because.
• Kokuhaku (告白) suru - This directly translates to “confessing”. This is the romantic culture of Japan, quite popularly show in Manga and anime where the girl or boy confesses their feelings to the person they like.
• Weeaboo - A very cute sounding word with a very derogatory connotation. This is a derogatory western slang term for a western person who is obsessed with Japanese culture, mainly anime. Remember, this is not a compliment! even though it might feel like a compliment.

Terms that are possible made up but should be a term if not a term

• YD - Debilitating disease called YD it a illness in which only allows you to do the things you "Yearn to do" but normies will never understand this as they will just call you lazy.