


Boob Window
In anime, when a girl's clothes for some reason has a hole in the middle of the chest that lets show her breasts, the term for that in Japanese is tanima hooru 谷間ホール, literally "cleavage hole." In English, it's usually called "cleavage window," or "boob window."
A single word term for it is "keyhole." Sometimes, it's also called a "peekaboo."
Anime: Kimetsu no Yaiba 鬼滅の刃 (Episode 22, After-Credits Scene)

nekupai ネクパイ
Although it ends up as nekupai in Japanese, in English it would be pronounced like neckpie. See: romaji.

paisura パイスラ (pai slash)
In Japanese, π/, "pi slash," also translated as pai slash, from paisurasshu パイスラッシュ, abbreviated paisura パイスラ, is when a strap of a backpack or something similar crosses (slashes) a girl's chest diagonally, emphasizing her oppai おっぱい, "breasts."(dic.pixiv.net)
Anime: Mieruko-chan 見える子ちゃん (Episode 6)

Hairbra
In anime, when a girl's breasts are covered by nothing but her hair, the term for that in English is "hairbra," in Japanese: kami-bura 髪ブラ.
Anime: Jashin-chan Dropkick, 邪神ちゃんドロップキック (Episode 1)
Another English term is Godiva Hair, named after the 11th century Countess of Mercia who rode a horse naked with hair covering her breasts.

Handbra
In anime, when a girl uses her hands or arms to cover her breasts, the term for that in Japanese is te-bura 手ブラ, literally "hand bra." This is also the English term for the same thing.

kemoner, ケモナー
In Japanese, "kemoner," or kemonaa ケモナー, means a "furry." As in, someone who is a furry. A person in the furry fandom. Furries.

oppai おっぱい
(they actually sell that oppai hoodie, by the way)

How to Say "Furry" in Japanese
The term for furry characters in manga and anime and anthropomorphic characters based on animals is kemono ケモノ. Generally, the term "beast ears," kemonomimi 獣耳 is associated with characters that only feature animal ears.
The term kemono also refers to furry art in general.
Finally, a furry in Japanese, as in someone who likes furry art, is called a kemonaa ケモナー, which would be a kemono-er, a kemoner, kemoneer, or something like that.
- Kemonaa Masuku da ga
ケモナーマスクだが
[I] am Kemoner Mask, however.
[My name] is Kemoner Mask, however.

kemonomimi
In Japanese, kemonomimi 獣耳, meaning "beast ears," refers to animal ears worn as accessory by anime characters, or characters that have animal ears as part of their bodies. It's also spelled kemonomimi ケモノ耳, and can be abbreviated to kemomimi ケモミミ.

kemono 獣, ケモノ
What is the meaning of kemono in Japanese? It can mean an animal as in a furry "beast;" an anthropomorphic "furry" character; or artwork featuring such characters. Typically, 獣, kemono in kanji, will have the "beast" meaning, while in katakana, kemono ケモノ, has the slang "furry" meanings.
Anime: Beastars
Anime: Flying Witch, ふらいんぐうぃっち
Anime: Aggressive Retsuko, アグレッシブ烈子 (2016)

oneshota
In Japanese, oneshota おねショタ means a pairing of an oneesan お姉さん with a shota ショタ, that is, when a character that's a little boy (shota) is paired with a young girl (oneesan) who's older than him, that's called oneshota.
Warning: this term is associated with drawn pornography (hentai 変態) featuring underage characters.
Right: Magatsuchi Shouta 真ヶ土翔太
Anime: Kobayashi-san Chi no Maidragon, 小林さんちのメイドラゴン (Episode 7, Stitch, Cropped)

shota
In anime, a shota ショタ is a little boy, or, more generally, any male character that's underage. The female variant of shota is loli ロリ. Sometimes, Shota is someone's name instead, specially Shōta with a macron, which is another way to romanize Shouta.
Warning: this term is often associated with pedophilia.
Right: Okamoto Tama 岡本タマ
Anime: Uchi Tama?! Uchi no Tama Shirimasen ka? うちタマ?!~うちのタマ知りませんか?~ (Episode 1)
- Context: a puppy and a kitten drawn as a cute anime girls, or rather, drawn as shotas.
- See also: kemomimi ケモミミ.
The term shota is also romanized syota.

shotacon
In English, shotacon refers to a genre of drawn pornography (hentai 変態) featuring underage male characters, i.e. shota ショタ characters. In Japanese, shotakon ショタコン means "pedophile" instead, although "pedophile" in English has heavier connotations than "shotacon" in Japanese.
Right: Ran Luckmolde, ラン・ラックモルデ
Anime: Mugen no Ryvius, 無限のリヴァイアス (Episode 8)
- Context: a shotacon oneesan お姉さん tries to put her hands on a shota.
- See also: oneshota おねショタ.
It's also romanized syotakon.
The female counterparts are loli ロリ and lolicon ロリコン.

lolicon
In English, lolicon refers to a genre of drawn pornography (hentai 変態) featuring underage female characters, i.e. "loli" characters. In Japanese, rorikon ロリコン means "pedophile" instead, although "pedophile" in English has heavier connotations than "lolicon" in Japanese.
- Context: a lolicon attempts to lure a loli into a van using candy.
- You can tell it's candy due to the Peko-jita ペコ舌.
The male counterparts are shota ショタ and shotacon ショタコン.

loli
In anime, a loli ロリ is a little girl or underage female character. The male variant of loli is shota ショタ. It's also romanized rori.
Warning: this term is often associated with pedophilia.
Middle: Koshigaya Komari 越谷小鞠
Right: Koshigaya Natsumi 越谷夏海
Anime: Non Non Biyori のんのんびより (Episode 1)

yukadon 床ドン
Literally, yukadon is a kabedon 壁ドン about hitting the "floor," yuka 床, rather than the "wall," kabe 壁. In both words, don ドン is an onomatopoeia for the *thud* sound that comes from hitting the wall or the floor with your hands.
Bottom: Senkuu 千空
Anime: Dr. Stone, ドクターストーン (Episode 10, Stitch, Altered)

kabedon 壁ドン - Meaning in Japanese, Types
In Japanese, kabedon 壁ドン is when a guy flirts with a girl by putting his hand, arm, elbow, or even legs on a wall, or when a girl flirts with a guy, or doesn't flirt, but threatens instead, or anything like that, plus dozens of other variations. Literally, kabedon is the sound of impact, DON! ドン! on a "wall," kabe 壁. This is sometimes translated to English as "wall slam."

Did Kanna Really Say Cuckold in Kobayashi-san Chi no Maid Dragon?

netori 寝取り

NTR
- shitteru...
知ってる・・・
[I] know. - anaga ga taburakashita
あなたがたぶらかした
You seduced [her]. - karada de
体で
With [your] body. - netorare
NTR
The act of having one's lover taken by someone else. (literally.)
You're taking her from me. (in this context.) - nn!?
んん!?
Hmmm!?
Besides NTR, the abbreviations NTL, NTRR, and NTRS also exist.

netorare 寝取られ
Sometimes netorare is abbreviated to NTR.

waifu - Meaning
In anime, "waifu" is a way to refer to a female character as if it were their wife, often sarcastically. That is, your waifu is the character you'd want to marry with, if they weren't a character.
From there, a series having many "waifus" means it has many characters that could be potential wives, which basically means it has many cute girls, i.e. "waifus" is synonymous with "heroines" in the dating simulation game sense.

do-M ドM

do-S ドS

do~ ド~ - Prefix
For example, esu S means "sadist" in Japanese, while do-esu ドS means "super sadist." Similarly, inaka 田舎 means "countryside," while do-inaka ド田舎 would be "super countryside," "in the boondocks," and so on.

Types of Otaku
Thus, here's a list of types of otaku in Japanese and their respective meanings in English:

Wota ヲタ
For example, wotagei ヲタ芸 or otagei オタ芸, literally "otaku performance," is a notorious type of dance performed by fans of idols (otaku) in support for their idols.
Words for types of otaku may also feature this abbreviation. For example, aniwota アニヲタ is the abbreviation of anime wotaku アニメヲタク, an "anime otaku."
