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.

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.

In Japanese, yukadon 床ドン is when a guy is over a girl on the floor and places his hands on the floor, or vice-versa. It's a flirting trope seen in romance fiction in general, but the term can be used to refer to the act even when flirting isn't involved.

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.

• Examples
• Atsushi "Yukadon" Fujimura

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."

In Japanese, netori 寝取り means "sleeping with someone else's partner," be it their girlfriend, boyfriend, wife, husband, or even someone who's not really their partner, like their childhood friend, or something like that.

• Translation
• Abbreviation

In Japanese, NTR is an abbreviation for netorare 寝取られ or netori 寝取り.

• 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.

Within the anime fandom, netorare 寝取られ refers to a genre of pornography featuring "cuckolding" and people "cheating" on their partners romantically or sexually. It's often associated with hentai and doujinshi 同人誌.

Sometimes netorare is abbreviated to NTR.

• Definition
• Kanji
• Netoru 寝取る
• Netorareru 寝取られる
• Netori vs. Netorare
• Netorase 寝取らせ
• Uwaki 浮気

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.

In Japanese, do-emu ドＭ, meaning literally "super masochistic," generally refers to a romantic personality type, which is different from what the word "masochist" means in English, and less often refers to someone who derives pleasure from pain, which is what masochist means in English.

• Personality Type
• Terminology
• ドＭホイホイ

In Japanese, do-S ドＳ, "super sadistic," may refer to a romantic personality type, may be a complaint about someone who likes to boss people around, or may refer to someone who is a sadist in the S&M sense.

• Meaning
  
  • Personality Type
  • Complaint
  • S&M
• Vocabulary

In Japanese, do ド means "super," or "mega," or "hyper, " or "ultra," or "very." It's an intensifying prefix often used exaggeratedly.

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.

• Meaning
• Dirty Words
• Spelling
  
  • 弩

In Japanese, the term otaku オタク, wotaku ヲタク, and the abbreviations wota ヲタ and ota オタ, refer not only to anime enthusiasts but also pretty much every sort of enthusiast, hobbyist, nerd, or pretty much any weirdo with some sort of odd interest, knowledge and passion about anything.

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

In Japanese, word wota ヲタ is an abbreviation of wotaku ヲタク, and is frequently used to refer to things related to otaku オタク. Sometimes ota オタ is used the same way.

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."

So, this season there seems to be an anime called Wotaku ni Koi wa Muzukashii ヲタクに恋は難しい, a romcom between an otaku and a fujoshi, literally "for an otaku love is difficult." And, despite me saying the word otaku over and over, you can see that in Japanese the word is wotaku ヲタク, not otaku オタク. After all, what's the difference between otaku and wotaku? What does wotaku mean?