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imouto

Japanese for 'younger sister,' widely adopted in anime, manga, and otaku subculture as a stock character archetype — the cute, often doting little sister figure.

iˈmutoʊDocumented since 2000s2000sGen Z162 viewsLast reviewed Jun 29, 2026+ Add a definition
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Born ~2000 · no dated citations yet
2000BornToday, 2026
Late-Millennial / Web 2.0 eraSee decade cohort →

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#1·Apr 28, 2026

Japanese for 'younger sister,' widely adopted in anime, manga, and otaku subculture as a stock character archetype — the cute, often doting little sister figure. In fan communities and discussions, 'imouto' typically implies a specific set of character traits: endearing, possibly clingy, and often presented in a moe (affectionately cute) light. The term appears frequently in fan fiction, character descriptions, and internet meme culture surrounding anime. It carries a distinctly fandom flavor outside of Japanese contexts.

His imouto kept interrupting his gaming sessions with snacks, which his chat found unbearably wholesome.
Origin: Directly from Japanese '妹' (imouto), meaning younger sister. Entered English-language internet and anime fan culture as part of the broader adoption of Japanese honorifics and kinship terms in otaku communities from the 2000s onward. Editorial expansion authored on Slangora.
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#2·Apr 27, 2026

(anime, and, manga, _, slang) A little sister.

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Regional slang from around the English-speaking world — British, Australian, Irish, Caribbean, Nigerian, Filipino, AAVE, and the hyphenated-English dialects that make the internet sound local.

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