Glossary Terms

Oppai (おっぱい) is a Japanese slang term for breasts. It appears frequently in ecchi and hentai anime and manga.

Baka (バカ) means “idiot” or “fool” in Japanese. It’s commonly used in anime dialogue, especially in comedic or romantic contexts.

Yandere (ヤンデレ) is a character type that appears loving and sweet but becomes obsessively violent or possessive, especially in romantic situations. Commonly featured in Japanese fiction across different media such as manga, anime, and more.

Tsundere (ツンデレ) is a character archetype that shows cold or hostile behavior at first but gradually reveals a softer, more affectionate side. Commonly featured in Japanese fiction across different media such as manga, anime, and more.

Kouhai (後輩) refers to someone younger or less experienced, often in school or work settings. The dynamic between senpai and kouhai is common in anime relationships.

Senpai (先輩) means an upperclassman or someone senior in experience. In anime and manga, it’s often used in school or work settings to signify admiration or romantic tension. Also see > Kouhai.

Cosplay is the act of dressing up as characters from anime, manga, or video games. It ranges from casual social media content to professional modeling and adult cosplay.

Eroge (エロゲー) is short for “erotic game,” a genre of adult Japanese video games that often include visual novels with interactive storylines and explicit scenes. Sometimes people use “ecchi game” as a synonym.

ASMR is a type of audio content designed to produce relaxing or tingling sensations. In fandom culture, it can include erotic audio experiences voiced by anime-style characters or VTubers.

VTuber (ブイチューバー) stands for Virtual YouTuber—online creators who use animated avatars to stream, often engaging in gaming, singing, and occasionally adult-themed content like ASMR.