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5.
A man who has rejected the societal notion of masculinity and chosen to define himself from the inside out instead, realising that traits such as empathy and nuturing are not actually limited to the female of the species, and nor are aggression and assertiveness limited to the male.

Despite this newfound revelation, however, there is still a strong genetic predisposition for humans to continuously behave as if we were animals seeking out the alpha male with those genes most suited for surviving in a hostile environment.

Often times, the average woman, whom society encourages to indulge in her weaknesses and surpress her strengths, is a self-loathing masochist who may appreciate the nice guy's friendship and understanding, but feels no attraction toward him because his insecurities remind her of why she hates herself. Therefore, she almost always seeks the dominant, aggressive, unempathic male with whom she can vicariously live to make up for her weaknesses. Of course, this inidividual, commonly known as a jerk, is also usually an egotistical, disloyal, and shallow person for whom societal dictates of masculinity will force him to disregard his mate's feelings and treat her as if she were beneath him.

Feeling emotionally unsatisfied, the female will then turn to her nice guy friend, whom she has long since castrated, for comfort, and complain to him about how men suck, except for him, and that he deserves a good girlfriend eventually except that it is never her or any other woman he might encounter.
I'm a Nice Guy? Fuck You!
by Killing Kittens March 01, 2005
 
36.
A man who is to afraid to speak his mind. Often times they will complain about how they are mistreated by women and hate the "Alpha's", "Frat Guy" ,"Athletes" and label them as troglodytes. What the nice guys fail to realize, is they are weak at a fundamental level. They only befriend the girls who are attractive because they have hopes that the friendship will result in sex or relationship. They kling on to these attractive woman because they do not have enough confidence in themselves to say they deserve more and better from these relationships. The pandering fool often is depressed because though he feels that he is close to the girl, he understands fundamentally the woman will not grow to like him. This is because girls are attracted to confidence on a very basic level. The obsequious ways of the nice guy are the embodiment of lack of confidence and self loathing. Nice guys do not strive to be jerks but good men. The difference in the two paradigms is this, nice guys do what they do to receive validation and praise, good men do what they want because they want to. Good men are truthful, honest and blunt.
I was a nice guy and hated myself and the world, I became a good man and I love life and the world.
by Thelonious Kwiggz August 11, 2012
 
37.
An unattractive, emotionally stunted straight male who whines to female friends and dates, "Girls only like assholes. They don't like nice guys like me." Unlike genuinely kind and intelligent men, who easily find themselves in serious relationships, a "nice guy" wards women off with his abrasive personality, self-pity, and/or slovenly appearance, and blames his sexual rejection on the failings of womankind, while simultaneously imagining himself as nothing but God's gift to them. "If only those dumb bitches knew that I'd treat them right!"

Once in a relationship, a "nice guy" tends to either be verbally abusive or extremely clingy and overbearing.
Go into any mixed group of friends. Say that the statement "girls don't like nice guys" is false. The first guy to cry, "But it's true!" is always the most unattractive person in the group, without fail.
by heyprettybaby December 05, 2010
 
38.
a young man who is selfless, caring and rejects dominance and machismo
If he were a nice guy maybe she would listen.
by The Return of Light Joker April 22, 2008
 
39.
A term that a mother uses to describe any single man she approves of and fantasizes about her daughter marrying, but for whom the daughter usually claims to have zero interest in *that* way.

A man labelled a "nice guy" is often a superficially respectful and intelligent, but also frustratingly indecisive or cowardly person who won't get the aforementioned girl because he won't initiate or ask.

Sometimes, the girl dislikes him and finds him boring because he always plays his life safe and fails to go out and accomplish anything interesting with it. (This is why the mother likes him.)

Other times, he is a friend of the girl and desires a relationship with someone, but fails to consider the obvious candidate. (This is the most cliched of romantic-comedy cliches).
Mother: "That guy who dropped you off home seemed like a nice guy."

Girl: "Yeah, I guess."
by weird-O April 22, 2012
 
40.
See Virgin
p1: Your a nice guy, ya know!
p2: Fuck You.
by HHHHEEEEHEEEE April 15, 2010
 
41.
something that doesnt exist
nice guy? never gonna happen
by someoneyoureallydontknow September 26, 2010
 
42.
A heterosexual male who has been rejected countless times by the opposite gender for his lame-ass attempts to woo them. A nice guy usually expect complementary sex for something the average person would do.

The "nice guy" will pretend to be "nice" up until his rejection from his target and he will reveal his true nature as a misogynistic, inept piece of shit and referring to himself as being "friend-zoned".
Stay away from these type of people at all costs or just piss at them fucking piss at them.
"Nice Guy": HEY HOT CHICK I OPEN DOOR FOR YOU PLEASE SEX ME
Female: What
"Nice Guy": GIRLS ONLY GO FOR JERKS WHY DOESNT THE NICE GUY EVER GET THE GIRL
by woahmantakeastepback October 06, 2013