Onii-Chan

TLDR: Older Brother

A little more detail if you like-
Onii can end with 3 different Japanese honourifics, -San, -Chan, or -Sama.
-San is the basic ending for the basic big bro.
-Chan is a more compassionate ending for Onii if you really love your big brother and feel emotionally attached to him greatly
-Sama is a bit of a formal ending for big brother, nothing too special.

My Onii-San is a cool bro
I really love my Onii-Chan!
Yes he is my Onii-Sama

by Rywen March 10, 2015

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Onii-Chan

Onii-Chan means "Big brother" in Japanese. Most people assume it's a mating call of some sort because of hentai but no that's just hentai. Lots of hentai has incest.

"Onii-chan! Drive me to my friend's house!"

by RigsSaysGoodbye May 4, 2018

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Onii-chan

The japanese of big brother (or just brother). And please dont say this to japanese ppl unless theyre your brother.

Girl: Onii-chan, can you please be sweet and pass me my plush?
Boy (a.k.a Onii-chan): Sure, here.

by N3K0-! July 8, 2021

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1. Used to refer to your older brother in a cute way (in japanese).
2. In hentai, mostly lolicon, the lolis use it to refer in a cute way to their lover.
3. Cringey term that lots of weeaboos use to refer to their crushes.

1. Onii-chan, watashitachiha shukudai o shinakareba narimasen. (Onii-chan, we have to do our homework.)
2. Onii-chan, daisuki! (I love you, onii-chan!)
3. Len onii-chan is so cute! He's my shota! Kawaii!

by Monokuma...pupupupu! September 28, 2020