Gary Stu 

The boring male protagonist who always overpowers his opponents without paying any price or breaking a sweat,haves no weaknesses,haves generic character design,bland and poor personality and doesn't have guts to marry a girl or even to do any adult stuff when girl who loves him want him to.

Kirito from Sword Art Online is not a Gary Stu. Take a look at Touya Mochizuki from In Another World With My Smartphone. He is true definition of Gary Stu,the god of Gary Stus. This protagonist have infinite mana,always overpowers his enemies without taking injuries,bleeding or paying any price for his powers,his personality doesn't have any strong or enjoyable features,his character design is generic and he hesitates to marry girls who love him because he is clinging to morals from his old world and he doesn't have guts to do a hard thing. Kirito pays price for his powers and struggles in almost every fight and he have more personality than generic isekai virgins like Touya Mochizuki.

Gary Stu by WaifuMaster17 October 10, 2020

Disco stu 

Converting external negativity towards positivity created by the medium of the backward thumbs up. Giving yourself much appreciation with the backward thumbs up thus becoming cool guys

That guy look sad he needs a disco Stu

#bagofdicks

Disco stu by Joby-one July 18, 2019

Ernie Stu 

A pejorative term created within and used by the TTRPG community(specifically the D&D and OSR Community) to describe one of the most toxic elements within the community.

Ernie Stu
When the DM/GM projects themselves on an NPC so that they become the hero of the story.

It is used to describe that snowflake character that the Dm/Gm is running.

"Ernie Stu" is used instead of “Mary Sue” or “Gary Stu” within the TTRPG Community.

Ernie Stu is however a placeholder with in the community due to the possibility of misgendering a character or person. The only stipulation for the eventually gender neutral or multiple gender specific variants is that the name or names must include “Ernie” in the name in it( anagrams are acceptable).

When a Gatekeeper attacks a party member, we all roll initiative.

" That NCP is such an Ernie Stu"
"That DM is notorious for creating Ernie Stu's"
"That DM isn't just a gatekeeper, they create Ernie Stu's"

Ernie Stu by IWouldLikeToRage July 6, 2021

Tom Stu 

The forbidden word. All plaids of HHL (Hot Hobo Love)know but fear to use this word for fear Tech (also known as Touj0ursPur on YouTube) will ban them. It is a nick name for the actor Tom Sturridge.

you can call him Tom.
you can call him TomStud.
but NEVER Tom Stu!

Tom Stu by Plaidtastic December 31, 2008

national Stu day

the day we celebrate mike & Burke Zalosh's son, Sam Zalosh by putting on a Grout-fit

you February third is national stu day, toss on a grout fit

national Stu day by burkez028184 September 23, 2022

chinko stu 

a short person with a crooked front tooth and a brace. gives up on everything and is called gay and stuff by mark campbell. hates life and hopes to die

chinko is cool

chinko stu by insitiona December 8, 2003

Uncle Stu

The male version of Aunt Flo.

I think Lenny's Uncle Stu is in town, because he is in a nasty mood today!

Uncle Stu by Verbal Platinum Princess May 13, 2009