noun Internet Slang

Onii-Chan

/oʊˈniːtʃæn/ · noun · slang

Japanese for 'big brother' — affectionate in anime, but a loaded meme online.

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Definitions

1

Because of certain anime tropes, it carries a sussy, suggestive reputation in meme circles that fans lean into for jokes.

“Don't say onii-chan in public, people will get the wrong idea.”
by community
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2

A sweet, childlike Japanese term for an older brother, used by younger siblings in anime. The cutesy delivery is part of why it became a fandom fixture.

“The little sister chasing her onii-chan around is the whole show's charm.”
by community
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3

Used ironically online to tease someone, often weaponizing its over-the-top cute connotation for cringe comedy.

“He typed 'onii-chan' in the gaming voice chat and got muted instantly.”
by community
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Onii-Chan In A Sentence

Onii-chan, help me with my homework, she said, melting the whole fandom.
Bro really set his ringtone to a voiced 'onii-chan', touch grass.
The 'onii-chan' in the comments is doing the absolute most today.

Origin & Usage

From the Japanese お兄ちゃん (onii-chan), an affectionate, childish way to say 'older brother'. It spread through anime subtitles and became a loaded meme in Western fan culture thanks to certain genre tropes.

Variants onii-sanonii

People Also Ask

What does onii-chan mean?

It's an affectionate Japanese word for 'big brother', usually said by a younger sibling. Anime fans adopted it for its cute tone.

Why is onii-chan a meme?

Its over-the-top cuteness and association with certain anime tropes made it a go-to ironic or suggestive joke online.

What's the difference between onii-chan and onii-san?

Both mean older brother, but 'onii-chan' is cuter and more childish while 'onii-san' is more polite and neutral.

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