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A molecule containing one Carbon atoms and two Oxygen atoms. Also known as "Duster Gas". It is the gas found inside of compressed air cans (such as the ones for cleaning computer keypads). Also used as a propellant for some paints and liquids.
"Bottles that contain CO2 can explode if exposed to open flame."

"CO2 is compressed oxygen."
co2 by they7692 July 17, 2009
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Refers to the case when gas pressure built up in the rectum expels feces with an unusual amount of force.
Don't go in there for a few minutes, man, I just took a co2.
co2 by thlayli January 12, 2003
A co2 is a type of air gun that usually shoots metal BBs. It can be used for pest control or for shooting your friends.
I lit him up with my co2, he took one to the lip!
co2 by A-Syed November 7, 2021

CO2 Scrub 

Also: CO2 scrubbing, Nerd for Sex.

From: The BONES episode, Aliens in a Spaceship
"No, Perla, I will not take Pluto behind the middle school and CO2 scrub him"
CO2 Scrub by Moxed December 18, 2008

co2 bomb 

A homemade firecracker that makes an M-80 sound like a cap gun
I threw a co2 bomb down the toilet of the other teams satellite at the high school football game

Co2 Dragster 

The primary weapon weilded by Schielke. Obsessed over it to the point where he was so proud of himself for building a childrens toy
Schielke:Ok lets switch gears
Jack:what are we gonna make?
Schielke:A Co2 Dragster of course,my proudest achievement!
Co2 Dragster by The Schielkmiester October 12, 2018

co2 bomb 

blow yu up
co2 bomb by cheese April 13, 2003
More from Urban Dictionary
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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