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Someone who flaunts their intelligence in a derogatory manner.
Jeff from marketing: "Yo Bill, I just learned html and made a pretty decent web site. Wondering if you could help me out here."
Bill from software: "Sorry, I can't talk to you until you can write a cross domain AJAX app with geolocation."
Jeff: "Quit being a nerdbag dude."
nerdbag by coolfire21 September 24, 2010
A bong put together by a nerd.
"Check out Dave's nerdbong."

"WTH is that shit...?" (laughing)

"I know. I think he put it together from his chemistry set." (laughing)
nerdbong by UCSteve November 29, 2016
Similar to douche bag, only much more polite.
You are being such a nerdbag today dude.
nerdbag by JHolla September 29, 2006
(noun)

A) Term used mostly in a derogative way towards someone that radiates nerd.

One who probably:
1. is into anime
2. likes a lot of sci-fi
3. plays World of Warcraft or Dungeons & Dragons on a day-to-day basis
4. goes cosplaying
5. has more than four (4) gaming systems, some of which are not even manufactured anymore
6. trading cards?
etc.
Nerdbag 1: Guys, get ready to attack. Everyone got their special abilities macro'd to their keyboards?
Nerdbag 2: Hold on, I'm out of manna.
Nerdbag 3: Goddamn it!
nerdbag by Isor December 15, 2008

Band Nerdbags 

Sweaty, gross smelling band kids who dedicate their life to marching like ants, or playing dated pop songs at pep rallies. Ones who proudly sport any and all band merch. Dog tags, jackets, t-shirts. They never forget to lube up their instruments, but they always forget deodorant. They carry their instruments with them like trophies while everyone else severely judges them. They're confident in themselves, but they really shouldn't be.
"Those Band Nerdbags are stinking up the gym again!"
"Who left their clarinet in the urinal! Must have been one of those band nerdbags.."
"Look at those band nerdbags playing Confident by Demi Lovato! That song was released in 2015!
Band Nerdbags by viripien April 15, 2023

Nerdbangin' 

Is synonomous to groovy or awsome. It is mostly used to describe someones happiness with themeselves.
Man i'm so Nerdbangin', like, if i was'nt me i'd be totally jealous of me.
Nerdbangin' by Goats n Skipping ropes February 23, 2008
More from Urban Dictionary

trucker's tan 

A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.
I had a trucker's tan after driving for 10 straight hours on a sunny day.
Word of the Day on October 5, 2026
The phenomenon where adults salivate at children's toys
Every time I walk into the toy aisle, I catch myself kidulting over the latest action figures and LEGO sets!
kidulting by Emotional Cruiser October 12, 2025
Word of the Day on October 4, 2026
British slang for a scientist or technical expert, esp . when the speaker is not certain of the expert’s specific field of study. Not necessarily derogatory, but typically used by persons without a technical background. In the US, the equivalent would be “egghead”, “squint”, or “geek.”

Origin of the word is unknown. Started sometime in World War 2. Given the typical evolution of British slang, could easily have started because what these experts did was confusing or “baffling” to the common person.
According to the boffins downstairs, the murderer used a serrated blade.
Boffin by Agnon February 11, 2023
Word of the Day on October 3, 2026

Pee Calculus

When you have to pee in a movie but don’t want to miss anything, and must do the following mental equation: will the amount I have to pee cause enough discomfort to diminish my attention capacity for the remainder of the movie to an extent which is greater than the amount of the movie I would miss by making a mad dash to the restroom.
I saw Satantango last night, wonderful film but by the 5th hour I had to start doing pee calculus.
Pee Calculus by anorlondo October 1, 2026
Word of the Day on October 2, 2026
Literally "dirty" pronounced with a West Indian accent. Can also have a positive connotation, for example Sean Paul's album title "Dutty Rock".
"The girl is pretty but she corrupt and dutty!"

or, in a positive usage:

"Booya! That freestyle was dutty!"
Dutty by J Hall April 3, 2003
Word of the Day on October 1, 2026
korean word for madam, older woman
Ajumma wait a moment
Ajumma by aintnotinbutnice July 5, 2009
Word of the Day on September 30, 2026
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