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A character in the video game Xenosaga that has the ability to turn little girls gay.
When MOMO met KOS-MOS she immediatly turned gay.
KOS-MOS by Dead_Board November 12, 2008
An awesome Xennosaga character and the coolest android ever.
Another definition of kickass.
Damn kos-mos just pwned those aliens!
kos-mos by Patriotic@america December 28, 2005
An Anti-Gnosis Humanoid Fighting System, serial number
00-00-00-00-1. Development name KP-X. Abbreviated name KOS-MOS. Configured for simulated battle, while kept at a fighting capability of 22% of it's normal out put
Kos Mos by johnathan gibbs January 5, 2004
The founder of English Chatting group where tosser wogs fight against admins. Kosmos is Uzbek man with a chaotic mind. Uncommon guy who doesn't fallow the sheep. Lots of bastards always talk shit about him but he never gives a single fu*k about what others say. He is the greatest dude you have ever met.
You know this group's owner Kosmos was accepted to the California Institute of Technology, where he is now a sophomore majoring in computer science.
Kosmos by XXXdead July 21, 2019

Kosmoski 

That was so like Kosmoski!
Kosmoski by Matthew Kosmoski August 13, 2006
- “I love you more than the whole kosmos!”
Kosmos by jbgyfiurwhjkbdsc May 2, 2023
More from Urban Dictionary
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
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