A gorgeous, athletic, talented and intelligent girl who has every man on earth chasing after her. Even though she is beautiful, she will deny this. Almost always on the good side. If not, she's that overpowered hottie on the other side. Unusually attractive, and is related or in a relationship with any Canon character.
So perfect that it's very annoying.

Used most commonly in RPGs, Fan Fictions etc etc.

Her male counterpart is Gary-Stu or Marty-Stu.

WARNING If you character is named Mary Sue but does not have these traits, the name does not exactly matter. It is okay to give you character the name, Mary Sue.
Fan-fiction writer:
Her name is Celestia Destiny Raven Violet Shimmer Moondancer. She has long raven black hair and beautiful pale skin. Her eyes are a sharp emerald but they change to a glistening red when she is mad. They change blue when she's happy too! She's very curvy and has the best taste in fashion. However she denies all of this and in such a cute, bashful way. She was such a talented witch, that the second she was born, Voldemort hissed in agony. She is sent to Hogwarts at age 6 and secretly trained by Dumbledore until she is old enough to go to Hogwarts. She then gets Draco Malfoy and half of the male population in Hogwarts to go after her. When Voldemort appears and asks her out, she refuses but shakes his out of pity. Then he turns good and we all live happily ever after. The End.

Random Guy:
MARY-SUE!MARY-SUE!
by Muffins4C August 11, 2011

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Top Definition
A sexist term used to enforce the misogynistic ideals that female characters/authors shouldn't be allowed to fantasize or write anything along the lines of wish fulfillment. Its misogynistic qualities are exemplified in many ways, most notably being the fact that it's not a term dominated by the male counterpart despite existing in a patriarchal society, as well as the fact that the male counterpart is largely undecided upon in name and also undefined (see urban dictionary's Gary Stu entry which has no definition but to say "A Male Mary Sue", and the Marty-Stu entry which involves the "Mary Sue" definition to define it).

It's usually used on the whole to bully new authors out of writing female characters altogether, making the task seem so daunting to some that they now only write slash fictions with two male characters, also exemplifying the misogynistic qualities this term involves.
1.

Fan Fiction Reader: Why don't we just call all bad/annoying characters "special snowflakes" instead of using a female name like mary-sue in a derogatory fashion?

2.

Troll: You're writing a mary-sue to pair with the canon character you fat low life, it's pathetic and so are you!

3.

Author: I'm so afraid of having my female character labeled as a mary-sue that I only write male characters!
by urmamason May 20, 2013

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See Mary-Sue. A female fanfiction character who is so perfect as to be annoying. The male equivlalent is the Marty-Stu. Often abbreviated to "Sue". A Mary Sue character is usually written by a beginning author. Often, the Mary Sue is a self-insert with a few "improvements" (ex. better body, more popular, etc). The Mary Sue character is almost always beautiful, smart, etc... In short, she is the "perfect" girl. The Mary Sue usually falls in love with the author's favorite character(s) and winds up upstaging all of the other characters in the book/series/universe. There are several main types of Mary Sue:

Victim!Sues: The Victim!Sue is your whiny, wimpy, pathetic female character who can't seem to do much of anything except cry and get herself into trouble that the romantic interest of the fic has to rescue her from.

Warrior!Sues: The Warrior!Sue is usually loud, obnoxious and (of course) an amazing warrior. She'll usually have some tragic past that led her to become a warrior, and she'll upstage all of the Canonical characters with her mad Sueish powerz.

Mage!Sue: Similar to the Warrior!Sue, the Mage!Sue has amazing stregnth in magic, or has a magical power that nobody else has. She'll usually wind up upstaging all of the magical characters of the series.

Punk!Sue: Also called Noncomformist!Sue or Goth!Sue, the Punk!Sue is usually written by female beginners in the 11-15 age group. The Punk!Sue is loud, obnoxious, annoying and generally the type of person who you'd want to send off to boot camp for six months. The Punk!Sue almost always has angst coming out of her ears and isn't really a bad person, she's just oh!-so-angry at whatever tragic past the author has chosen to give her. The Punk!Sue is based on what the 11-15 year old author thinks is "cool" and wishes she could be. This includes Evil!Sues.

Misfit!Sue: This includes all Sues who are supposedly geeks, nerds, misfits, etc. Usually, the Misfit!Sue doesn't start out as inhumanly beautiful, but winds up getting a makeover and finding out she had the potential to be a guy-magnet (or girl-magnet, depending on the genre) all along. Also includes the "My parents want me to do this but I want to do that and it's not fair!!one!" type of Sue. Usually, this Sue is very bookish and smart, but will find some sort of physical talent nobody expected and become a star as a result.

Another thing to note is that a Sue will usually have a completely off-the-wall name, like "Viquetoria". The more wierd and pretentious the name of the character, the more likely it is that she's a Sue.

Finally, Sues often have wierd, improbable or impossible bloodlines. A secret half-elf child of Elrond and a nameless human would be an example of this. A character who was Dumbledore's grandchild and Tom Riddle's daughter would be another example.
The character in the HP fanfic was a complete and utter Sue. She moved across the street from Harry. She was beautiful, smart and pretty. They fell in wuv almost immediately. She threw all of the characters out of character and generally upstaged everyone. It was quite obnoxious.
by nscangal July 29, 2005

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A Mary Sue is a seemingly perfect character. Their male counterpart is a Gary Sue or a Marty Sue. They have little to no flaws. Often times they have a tragic backstory, being abused, abandoned, etc. They are unrealistically attractive, and often times have things that break cannon severely, such as a Pokémon girl being a Neko. They often have powers that are given to no others in the universe, and that have nothing to do with the universe. They often have long names, often times having 'Kawaii' or 'Desu' or simple Japanese language within them.
Often times they are dating a cannon character, and often times replace a cannon character.
"Your OC is a Mary Sue!"

"Yeah, my old OC was named Shi. She was a Mary Sue."

"Here's my OC, Kristina Jose Marky Trinity. Please don't say she's a Mary Sue."
by glibmonster July 30, 2017

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A fanmade character that is perfect in almost, if not, every way. They generally are unrealistically attractive, virtually every character is their friend or has a crush on them, and are overpowered. Male versions are also called a, "Gary Sue"
"Your OC is a Mary Sue"
by Cassidy Greyson February 11, 2017

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A Mary Sue is a fictional character that is either too perfect or overpowered.
Rey from Star Wars - Episode VII - The Force Awakens is a Mary Sue!
by Daviddv0601 January 05, 2017

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A Mary Sue is a term used to describe a original charecter from a story, anime, game, etc. that is unoriginal, stupid, or fucked over in multiple ways. Some things that could get you oc called a Mary Sue: Stupidly dark backstory, overpowered powers (Immortal, Insta kill, etc.), a twenty inch dick, and more.
Person 1: My oc's least favourite thing is her terrible back flashes.

Person 2: FUCKING MARY SUE
by Dyslexic_Apple September 05, 2016

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A character/OC that is invincible, almost god like, to an extent that is extremely unlogical ans annoying
"He was such a Mary Sue when he got stabbed in the heart but pretended it was nothing and walked away"
by rednaxela July 17, 2016

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