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It is a popular sport where the object of the game is to get a ball into a bin without using your hands or letting it touch the ground. You must say Uno Mas and score before you leave the game.
"Did the Uno Mas club play in the mini gym after school today?"
Uno Mas by Shs_unomas October 23, 2019
A Really Cool Guy. An Uno Mas Will Aways Cheer You Up With Funny Jokes.
Person 1: Hey, Marcus Helped Me With My Homework And I Got An A+
Person 2: Yeah, Marcus Must Be An Uno Mas
Uno Mas by UrbanEel November 11, 2016
A Loyal And Faithful Person Who Is Trustworthy And Cool And Funny At The Same Time.
Person 1: Hey Marcus Helped Me With My Math Homework And I Got An A+
Person 2: Yeah, Marcus Must Be An Uno Mas
Uno Mas by UrbanEel November 11, 2016

Uno Más 

Level in Super Mario Maker 2 which features one or several glitches in the game.
I love the ''Uno Más'' series in the DGR YouTube channel
Uno Más by RZKUD March 1, 2022

<.7.9.7.6.>Falta Uno Mas, faLta uNo mAs, faltA unO maS<.7.9.7.6.> 

<.7.9.7.6.>Falta Uno Mas, faLta uNo mAs, faltA unO maS<.7.9.7.6.>
<.7.9.7.6.>Falta Uno Mas, faLta uNo mAs, faltA unO maS<.7.9.7.6.>

UNO massacre 

getting absoultly embaressed in the game of uno.
did you hear about kballs getting destroyed in Uno" yah it was an Uno massacre
UNO massacre by WolfpackSAW May 16, 2011
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
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