It's not necessarily a bad thing or a good thing; it's just a characteristic.

A nerd is unusually smart, esp. in math, science, and/or computers. He or she tends to know a lot about pop culture, yet, ironically, often doesn't have great social skills. Usually has a great sarcastic, witty sense of humor (deriving from the knowledge of pop culture). Well-rounded, but just can't express him/herself to non-nerdy people well.

Examples:
Seth Cohen on "The O.C." (the best example)
Shia LaBoeuf's character in "Transformers"
The "I'm a Mac" guy in "Live Free or Die Hard"

Geek, dork, and dweeb, on the other hand, tend to have negative connotations.

See also metanerd
Guy 1: What's with the nerdy guys having these hot, nice girlfriends?
Guy 2: I think the women are tired of jerks and want someone who'll treat them nice and take care of them.
Guy 1: Yeah. So you want to get wasted and treat women like meaningless objects?
Guy 2: Yeah! Let's go!
by Jason McD. July 11, 2008
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George McFly in Back to the Future before Marty went back in time an altered history to make Biff George McFly's bitch.
by Anonymous July 24, 2003
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They created all the best stuff on the internet, including the internet itself. All the non nerds then came and ruined it.
by Derpppppppp May 9, 2010
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In general, a nerd is a social outcast in some way shape or form. However nerds can also be socially adjusted and may be popular. In most cases nerds are not very happy people, because despite their levels of popularity, they usually don't have much of a life. While it's perceived that what determines nerdiness is what the person is into, it goes deeper than that. Nerds are usually diagnosed with some type of minor mental disorder (ADHD, Aspergers) and as a result act in a way that many people find strange and may tease them because of it. Also, nostalgia and escapism are two very important things to a nerd. Nostalgia because childhood is always better than adolescence, and this rings especially true for nerds-and escapism for obvious reasons. Common traits for nerds are intelligence, low self-esteem, shyness, sexual frustration and yes, narcissism. Nerd pride, while a healthy thing can also be dangerous. Many nerds become bitter towards society and grow massive egos, which only makes more people hate them. While many nerds are mature and intelligent, many others (despite stereotypes) are ironically just as petty and small-minded as many of their tormentors. Then of course on a smaller level, nerds are defined for their interests. Stereotypically, video games, books (especially of the comic variety), and anime, as well as many other things.
The reason you may see a nerd watching a Disney movie or a children's cartoon takes me back to an earlier point: Nostalgia. Anything that reminds them of their childhood is special to them. As for the knights, pirates, elves, etc, it falls under Escapism. Because when life sucks, escapism is a good temporary way to deal with it. And when it comes to escapism for escapism's sake, the less realistic the better. I have seen a large number of definitions on here that I find disturbing-from both sides of the field-and what I'm here to do is try to dispel the hate a bit. I am here to create a hopefully unbiased definition of the word 'nerd' without insulting nerds but at the same time not instigating everyone else. This will serve to both give nerds something to think about and provide some insight to outsiders who don't understand nerds and may hate them for it.

I hope most of you are satisfied with the above definition (more like a book). Nerds, don't think yourself better than everyone else. It's a good way to become a douchebag and even less popular. Other people, try to have some pity on the nerdy kids and try to understand where they're coming from. Personally I have known shallow, hateful nerds and I've also had intelligent friends who were not nerds. We don't have to make this a war people, if we're intelligent and mature enough to accept the other side, then I think we can get along.
by Mediator man March 14, 2010
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a person in which is both academically inclined and fans over things.
"he is such a nerd for liking Star vs. the Forces of Evil"
by lilypad1207cupcake November 6, 2015
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A person who is unaware that his behavior appears odd to others. If you told him so, he would not believe you. If you explained why, he would not understand.
He's a great guy, but sometimes you have to overlook all that cluelessness. He's a real nerd, up there in Asperger's territory.
by radiofox April 22, 2005
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A word made by someone with the alias of Yousy70 in 1988. It means you are an absolute duck and bunniesmurderer and a toe succer.
Yousy70:"Dude, you are such a nerd."
Random Person:"HOW DID YOU FIND OUT?!"
by Yousy_70 May 8, 2018
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