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A condition where a guy feels he is entitled to dating a girl simply because he has been her friend and let her cry on her shoulder about the jerks. When she is not attracted to him, he choses to blame it on the fact that he has been a "nice guy" and she only wants to date jerks. Really, not the mentality of a guy who is actually nice, because one should not be kind in the hopes of getting a girl and simply be kind for the sake of being kind. Any guy who tries to guilt you into dating him simply because you are friends has the mental affliction known as nice guy syndrome.
"Hey Pam, do you want to date me?"

"Sorry Bill, you're a good guy, but I'm not interested like that."

"You're such a bitch! You won't date me because I've been a good person to you."

"I think you have a case of nice guy syndrome."
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Aug 8 Word of the Day
A method of guessing on a multiple choice test that involves looking at the position of the second hand. If the hand is between 12 and 3 the guess is A. If the hand is between 3 and 6 the guess is B. Between 6 and 9 guess C. Between 9 and 12 guess D.
I passed my test! Thanks to the Clock Method
by ET4444 November 12, 2007
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2
A annoying mental condition in which a heterosexual man concocts over simplified ideas why women aren’t flocking to him in droves. Typically this male will whine and complain about how women never want to date them because he is “too nice” or that he is average in appearance. He often targets a woman who is already in a relationship; misrepresenting his intentions of wanting to be her friend and having the expectation that he is owed more than friendship because he is such a good listener. He is prone to brooding over this and passive aggressive behavior.

He is too stupid to realize the reason women don’t find him attractive is because he feels sorry for himself, he concludes that women like to be treated like shit.
Nice Guy Syndrome is one reason why I don't try to make friends with heterosexual men.

Men who suffer from NGS vary from the angst filled teenager with no date on friday night to the 49 year old man who has never been married or had a meaningful relationship with a woman.
by OneBadAsp October 29, 2006
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A spectrum social disorder that makes a man think he's entitled to date or have sexual relationships with women simply because he sees himself as a "good person."

Level 1: The most mild form of NGS. This from of the disease usually occurs with a man who has been rejected for the first time. Symptoms include: anxiety, depression, irrational fear, lack of necessary social skills, and total obliviousness to how women work. If this man were to try to approach a women, he will come off as a "creep" to this woman, for he will probably use the wrong choice of words. He will also have body language that will make him appear as if he is a "stalker." He is probably just a man who has yet to "come out of his shell."
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Level 2: A slightly more severe form of NGS, most common men over 21. Symptoms include: passive aggression, intense frustration, resentment towards women, obliviousness of how the world works, and contemplations of revenge. This man will successfully convince his female victim to become his friend. After the nice guy confesses his feelings, she'll politely reject him. He'll call her out; claiming she only likes to date "douchebags" or "badasses." He'll soon start using derogatory words. The nice guy will return home and start masturbating to silicone-enhanced porn stars. He will google the term "nice guy." He will most likely give the web definitions a "thumbs down," as he is probably a nervous wreck who can't "take a joke."
The boy was rejected because of his nice guy syndrome.
by Jay Strat August 06, 2018
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A nice guy is an informal term for an often young adult male who portrays himself with characteristics such as being gentle, compassionate, sensitive and vulnerable.The term is used both positively and negatively. When used positively, and particularly when used as a preference or description by someone else, it is intended to imply a male who puts the needs of others before his own, avoids confrontations, does favors, gives emotional support, tries to stay out of trouble, and generally acts nicely towards others. In the context of a relationship, it may also refer to traits of honesty, loyalty, romanticism, courtesy, and respect. When used negatively, a nice guy implies a male who is unassertive, does not express his true feelings and, in the context of dating in which the term is often used, dishonestly uses acts of ostensible friendship and basic social etiquette with the unstated aim of progressing to a romantic or sexual relationship.
nice guy syndrome: in the early 90s I had a crisis. I was about two years into my second marriage. I thought I had found the woman of my dreams. Yet I was frequently frustrated and resentful toward the woman I loved.
by Boardanddepressed September 01, 2019
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A disease in which a socially awkward, unattractive, and hygenicly-repulsive male with a terrible personality feels victimized by women when they don't want to date him. Said male comes to believe all women are 'sluts' who want or deserve to be raped and killed, or, in its milder form, spawns the evil known as 'pick up artists'. It has no known cure.
No, he's just having a flareup of his Nice Guy syndrome.
by saraiya April 13, 2011
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6
An affliction that usually develops in males during their early twenties, preventing them from getting some. Virgins are particularly susceptible. Common symptoms include:

- nice, friendly personality
- lower than average self-confidence
- frequent high-fives with females
- socially awkward
- perpetually single
- has numerous friends that are girls
- often seen wearing plaids
- hugs women using the A-Frame technique
Dan suffers from nice guy syndrome.
by T-Diddy from the City May 25, 2007
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