For reference, a glossary of terms for sitting positions in Japanese.

In Japanese, chouza 長座, literally "long sitting," refers to a way to sit on the floor: with your legs straight, stretched long. This is typically seen in flexibility exercises.

In Japanese, taiiku-zuwari 体育座り, "physical education sitting," is a way to sit on the floor: holding your knees. It's called this way because children are made sit like this in physical education classes in Japan.

• Context: students sitting in a "gymnasium," taiikukan 体育館.

It's also called sankaku-zuwari 三角座り, "triangle sitting," or taisou-zuwari 体操座り, "gymnastics sitting," depending on the region.

In Japanese, tate-hiza 立膝, meaning "standing knee," is a way to sit on the floor: with one knee up.

• Context: three characters sit differently.
• Left: W sitting.
• Middle: tate-hiza 立膝.
• Right: seiza 星座.

It's also spelled tate-hiza 立て膝, with okurigana,

In anime, a "three-point landing," in Japanese: san-ten chakuchi 三点着地, refers to a pose taken when landing from a high fall, typically with one foot, one knee, and one hand on the floor, making it three points of contact.

The three-point landing is often used by heroes making a dramatic entrance in a scene.

In anime, sometimes a bike slide is a reference to Akira アキラ, a 1988 anime movie, specially if's a shot with the character facing the camera, with three trails of smoke coming from the tires and the character's foot as they brake the bike, and with lightening coming out of somewhere.

In Japanese, onnanoko-zuwari 女の子座り, meaning "girl's sitting," refers to a way to sit on the floor. Typically, this is synonymous with W sitting (petan-zuwari ペタン座り), but sometimes it refers to side sitting instead (yoko-zuwari 横座り).

• Left: W sitting, typically what onnanoko-zuwari refers to.
• Right: side sitting, which is sometimes called onnanoko-zuwari, too.

In Japanese, yoko-zuwari 横座り, meaning "side sitting," is a way to sit on the floor: with your legs to one side, from a seiza 正座 that leans a bit to one side, to just having knees bent and feet to one side.

It's also called onna-zuwari 女座り, "woman's sitting," ningyo-zuwari 人魚座り, "mermaid's sitting," oneesan-zuwari お姉さん座り, "older sister/young girl sitting," and shares the name onnanoko-zuwari 女の子座り, "girl's sitting," with W sitting.

From these names, you can guess it's typically associated with women for some reason.

In anime, when a character sits on the floor with their butt between their legs, forming a W shape, this is called "W-sitting," daburu-zuwari Ｗ座り, petan-zuwari ぺたん座り, petanko-zuwari ぺたんこ座り, wariza 割座, onnanoko-zuwari 女の子座り, or ahiru-zuwari アヒル座り.

In Japanese, emu-ji-kaikyaku Ｍ字開脚, means a pose: opening one's legs (kaikyaku) like the letter M (emu-ji).

The emu morpheme is a katakanization of the letter M.

• Context: Ririko tries to control a dragon by apparently pretending to play twister inside of its stomach.

This term is typically only used NSFW contexts, e.g. shibari 縛り, for pretty obvious reasons.

In Japanese, denki-anma 電気あんま, meaning "electric massage," typically refers to grabbing someone by their legs and (violently) massaging their crotch with your foot, which, in anime, is typically done to physically punish a character.

It's also spelled 電気アンマ.

In Japanese, hara-pan 腹パン means "belly punch." The word hara means "stomach," "belly," the body part, and pan is an abbreviation of panchi パンチ, "punch."

Alternatively, it means you're full after eating, ohara panpan お腹パンパン, "stomach bursting."

This is a sort of pan パン, "bread," that you can't eat, some others being furai-pan フライパン, "fry pan," and pantsu パンツ, "panties."

Warning: examples in this article feature violence and audio.

In Japanese, sarashi さらし, meaning literally "bleached," typically refers to a piece of white cloth worn around the chest by women, and around the torso by men.

It's also spelled 晒.

There are many manga and anime about school delinquents, or that feature delinquent characters. For reference, an article about them.

In Japanese, sukeban スケバン means a "female delinquent," the sort that gets into fights, and is part of gangs.

It's also spelled sukeban 助番, or onna-banchou 女番長 with sukeban as gikun 義訓.

In Japanese, yankii ヤンキー means "delinquent," furyou 不良, most of the time. The term is a katakanization of "yankee," which means a person from the United States. It also refers to a fashion style associated with delinquents.

In Japanese, yankii-zuwari ヤンキー座り, meaning literally "yankee sitting," translated to "delinquent squat," because yankii ヤンキー means "delinquent," and also known in English as the "slav squat," refers to a way to sit on the floor: by squatting with your knees apart.

It's also romanized yankee-zuwari.