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 26, 2007
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A dating disorder wherein a guy with zero self confidence has a constant need for approval and the personality of a wet mop, who blames his inability to get a girlfriend or hook up on the delusion that he is simply too nice and women only want douchebags. Contrary to feminist beliefs(again), NGS is not misogynist nor sexual entitlement. It's self-victimization.

Symptoms Include:
- insecurity
- codependency
- being too nice
- never disagreeing
- a need to please others
- blaming the friendzone
- fear of rejection
- unstable self-esteem
- thinking girls should lust for you acting overly nice...
- ...self-pity when reality

Causes:
The exact cause of NGS is unknown, though professionals agree a common factor is acting like a faggot with no backbone in a competitive dating scene.

Diagnosis:
If you think bitches constantly friend-zone you and only hook up with douches when you're obviously superior because of how supar nice and affectionate you are... then you may suffer from NGS.

Risks:
- Virginity
- Dying alone
- Friendzones
- Getting used
- Crying yourself to sleep

Treatment:
The first step is realizing that you are the problem and girls are simply not attracted to insecurity and fail. Your doctor can often prescribe a swift kick in the ass for your balls to drop, which should help develop confidence. Thick skin and a personality are also recommended.
Jake: Man why do girls like Megan keep dating douchebags instead of me? I'm so much better just look how much nicer I am. It's not fair.
David: Well have you tried busting a move or flirting or something?
Jake: No way I don't wanna come off like a douche. I mean what if she doesn't like that or something.
David: So.... you're just nice? That's it?
Jake: Not *just* nice, I'm also totally a great listener and willing to do anything they want without complaining.
David: And this is every time? Dude... That sounds like some kinda nice guy syndrome. Ouch.

Kate: Hey what about that Jake guy? He's totally into you and kinda cute.
Megan: lol I had no idea. The guy's super nice and a great listener but he never flirts or makes a move. I figured he just wasn't into me. Besides, it feels like he's sucking up to me sometimes. Such a snorefest, not really into that.
by xailu March 8, 2014
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An exasperating social condition. Archetypically, the sufferer is a straight male with lots of female friends, but who cannot get a date or get laid to save his life. This is because every woman he meets, he befriends, and then when he tries to advance out of the 'friend zone' into 'boyfriend territory', he gets a speech to the effect of "I can't sleep with you, you're such a good friend, I don't want to risk our friendship". Typically, the rejecting female friend will then date/fuck other men who are total douchebags, then bitch and moan about them at length to their platonic male friends. Chances are, most of these platonic male friends are either gay, or straight and secretly furious that that mongoloid cracker homunculus fuck gets to fuck her, when he is clearly inferior in every way.
"I have lots of hot female friends, and none of them like me 'that way'. I have nice guy syndrome and I'm not even all that nice."
by Danny Delinquent December 30, 2004
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When a poor nice guy can't get a girl to like him just because she
- already has a boyfriend

- thinks he is completely unattractive
- doesn't like his personality
or because he
- is a total neckbeard
- doesn't understand social cues
- is probably a brony, furry, etc.
- calls himself a "pickup artist"
- wears a fedora everywhere he goes
A neckbeard says, "I can't believe Stephanie won't dump her boyfriend and be my girlfriend. Girls always go for the douchebags when they could have a guy like me who will love them and respect them!"
His non-neckbeard friend replies, "Dude- you've totally got Nice Guy Syndrome! Go jack off to My Little Pony or some shit."
by 33thanksnothanks33 March 13, 2018
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A disease flooding younger adults who compel them to be complete and utter assholes to women because the aren’t interested and don’t know how to let the guy down gently
Person 1. Man, I heard that Chad has a case of nice guy syndrome

Person 2: well, that’s no surprise
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a problem when a guys penis is average to above average size yet he is heavy and he had a area of "padding" around his penis making it seem like it's smaller.
my boy friend was great in bed but he had fat guy syndrom.
by someone cool April 23, 2005
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when your coolness is so high you have to take adderall to keep it at bay
"why is so damn hard for you to pay attention"
"✨cool guy syndrome✨"
by maxmaxwoo April 4, 2022
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