The person in the room that does not talk to anyone or talks very little. This person is usually very smart, polite, nice, and wise but will go unnoticed, but in contrast they can be extremely insulting and cold, if they wanted to be, as they don't care too much for nor about what people think.
The quietest kid in the room is really the biggest crook.

The quiet kid is possibly the nicest, politest, and smartest people you will ever meet. Likewise, they have the potential to be the most dangerous.
by Laleiluleilo October 24, 2011
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Lots of schools have this kind of kid called the "quiet kid" . Who are they? What do they do to us? They usually don't talk alot, we don't know what do they feel but we might thought that he or she is gothic, rude, bad. But some of them are, but some of them aren't rude. We hate them because they are boring or faking depression. But inside of a quiet kid is fun, they never shown themselves, they are shy and quiet in school. However, when they go home, they go loud.

Im a quiet kid too.

Most teachers know that shy students are like anyone else in their class: we want to reach them and hope that they have a good class experience. I have never known a teacher to dislike a shy student, if that is what you are asking. ... As an introvert myself, I relate to these students very well!

From: What do teachers think of shy students? - Quorawww.quora.com What-do-teachers-think-of-shy-students
by XXEnds September 28, 2020
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A quiet kid in school. Never speaks to anyone if they didn’t have to. They usually are very smart and loyal, but they can come off as stuck up or too good to say hello to you( which isn’t true). On breaks they usually read or draw, while others are flipping bottles and drawing dicks on the white board. And unfortunately they can be targets for bullying. They may come off as creepy and dangerous, but always be nice to them.. because for the moment they shoot up the school, they may spare you for giving them that peice of juicy fruit without them asking for it.
Loud black girl: AYO THERE A NEW KID IN DA CRIB, HII
Quiet kid: ...
by kid slicc September 12, 2018
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The quiet kid is usually a kid in school who is considered quiet and/or silent. In meme culture the quiet kid is considered the most badass person in the class and be able to kick everybody's ass. Example of this is include Light Yagami from Death note and Onision's self inserts in his books. Alot of the quiet kid memes is likely there for the author to self insert themself as a cool kid since alot of internet users was themself quiet as a kid. Alot of the jokes also revolve aroud "school shooting happens, lol"
student 1: "Hi"
Quiet kid 1: "..."
by Wulmer May 31, 2021
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A kid who has seen... lets just say stuff. He never talks and is always wearing a hood. Whenever someone fucks around with him, he will get fucking lit up more than the fucking sun.
by MAX_PEREZ686 June 02, 2020
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The quiet kid is the most quiet kid in class, never speaking to anyone, always going unnoticed. The quiet kid is also very slow to anger but when they are angry, you stay away from them. They are very dangerous when angry. They can be very nice if you are nice to them so make sure to share your snacks with them and don't only ask them for the answer to the math homework.
John: Yo! Who is Jason??
Dennis: You don't know who Jason is?
John: No lol.
Dennis: Oh! Prolly cuz he's the quiet kid.
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A kid at school who doesn't talk often portrayed as a sadistic goth kid who like guns.
The Quiet Kid has a list of classmates how bout' that!
by Cambodia1132 May 31, 2021
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