When someone around the age of 12-15 get engrossed into one topic such as a TV show or video game, and believes they are a part of it in the form of a Character or possessing the powers from the show or video game. In other cases, influences from shows or video games may not even be a cause.

Surprisingly, this is a quite serious phenomenon that happens in real life, and not just something that appears in the show “Chuunibyou Demo Koi Ga Shitai” as where it is most commonly known.

Symptoms may range from full-on costume wearing with quotes used within their everyday conversations, from acting completely normal with only them believing in themselves having some sort of power.

A common example of a subtle version of this syndrome would be kids having thoughts such as “I’m smarter than anyone” or “No one can understand my thoughts, It’s too complicated”.
“Ugh, that kid has Eighth-Grade Syndrome. He must think he’s so cool, when in reality he’s just pure cringe.”
by iNotAotaku June 13, 2020
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its when some kids you know suddenly tries to act cool like they are the main character of a show.but mostly its just childish delusions for example like when you see someone trying to act like a anime character then you know he or she has eighth grade syndrome.
student in the same class:Hi my name is steve what's yours?

eighth grade syndrome kid:Hello,i am the hero of this world ad i will defeat every evil i see.
by nav15 November 2, 2015
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1. A time in life everyone tries to forget. It usually involves acting totally different than you actually are. Sometimes people think they have superpowers or think that they are super cool. No matter what case of 8th grade syndrome it is, people will never want to remember it.
Guy: Remember back when you had eighth grade syndrome you thought you had superpowers and were destined to save the world.
Guy 2: I was trying to forget those dark times.
by xXsadboiXx April 11, 2018
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A period of time when one is searching for oneself. Can also be when one wants to act more adult-lik such as drinking coffee black despite hating the taste of coffee in general. Often results in shame, disgust, and the wish erase that period of time from existence in later years.
Girl 1: remember when you died your hair pink and got a bunch of piercings?

Girl 2: don't remind me, I had eighth grade syndrome.
by Algebraicrhombus January 2, 2014
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