Brother in Japanese. Used mostly by little girls or children. PLEASE do not make this sexual its gross.
"Welcome home, onii-chan! Dinner is one the table!"
by Dekus_hair_23 October 5, 2021
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To most normal people it means "brother" but...
if you're a nasty, it means "fuck buddy"
"Good morning Onii~ Chan"
Ara Ara~ Onii- Chan, you're so hard"
by definetlygoingtohell February 12, 2021
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When a anime girl calls her older brother "onii-chan" it means get ready for insest.
Anime girl-"onii-chan~"
*1 day later* *INSEST* Anime girl- *moAnS*
by SeNpAi~~~~ August 11, 2019
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A strikingly sexy male friend, who all girls fawn over. A word used in replacement for the male friend's name whom you drool over so dearly. In Japanese, Onii-chan means older brother, and is a title of respect and in some cases, resentment. Onii-chan is a word commonly used during weaboos climaxing over hot characters in their favourite anime
Hands off! Lincoln is my Onii-chan!
by Lord Onii March 10, 2015
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The Japanese word for "fuck-buddy" most commonly used in anime.
"Onii-chan! Close your eyes and don't look ;)"
by Secretsneverdie December 16, 2017
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