A pedophilic asian with average eyes. Power-hungry to compensate. If you are under the age of 18 beware...
Ruis I are do my job! Go talk to that little kid or something.
by The Improbable Viking August 30, 2010
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I was chatting some some guy on a thread about chainsaws until someone came on, starting acting crazy on there, and then got banned for a RUI.
by Justicewithtacosandweed August 24, 2018
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Abbreviation for Reflect Upon It.

Sometimes, when you want to just say, hey, why don't you think about what you just did, said, smoked, did last night while drunk, RUI is short and easy.
Guy1 : Oh man, I got so wasted last night, I have no freaking clue what I did.

Guy2: Uncool man. RUI.
by Gradstudent6 April 26, 2011
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Ruis is somebody who handsome as hell and got a big dick
by Agifienuahdw March 19, 2020
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some fj who jerks off when u turn your back. Very freaky.
OH MY GOD THAT RUI IS D__F__Ging!
by the truth December 10, 2003
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A specially attractive and cute guy that is great in bed. He is an intelligent, and so loyal to his loved ones. Yi Rui is a very unique name. A fun person to hang out with and will always stay loyal to his partner
This guy is so loyal. He’s a Yi Rui!
He is specially attractive and unique! He must be a Yi Ruiz
by sexyfatasian November 10, 2019
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a mman from a performing band called wonderlands x showtime. he has a very cool singing voice have you heard that man omg. he's also tsukasa tenma's silly inventor boyfriend whom he shoots out of a canon sometimes
person a: who's your favorite character from pjsekai?
person b: rui kamishiro
person a: you're so hot wanna make out
person b: yes.
by ihopedreamkhses July 14, 2022
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