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Heroes of Newerth terminology. Used when one feels the need to show their certainty on a matter. Originally birthed by 'Chu', ahead of eG's upcoming game against SK. Against the odds, SK took the series.
Interviewer: So Chu, how confident do you feel ahead of the Semi-Finals against SK Gaming tonight?
Chu: About 1600% confident.
1600% by massiveFAN February 21, 2011
Related Words

1600 club 

Similar to the mile high club, but instead of a plane, the venue is the White House
I joined the 1600 club last night with michelle
1600 club by Ghetto_Ghandi February 18, 2015

1600 vine 

A Magical place in Hollywood where all the ex-vine stars live
“Dude I saw Logan Paul at 1600 vine!”
“Wow that’s great!”
1600 vine by Kid from class October 12, 2017

1600 Chins 

This is what is one the bottom of Master Frederick Dolmans face. Every single time he speaks he causes an earthquake which can be felt up to 2000 miles away (The seismic waves are huge). He walks with a wibble and a wobble in his walk. He is the leader of all the people that come under the category of morbidly obese and extremely fecking fat.
Wow that man has 1600 chins!
1600 Chins by Gorgeous Greg February 26, 2020

lil 1600 

a souncloud rapper with a fat cock
i looove lil 1600
lil 1600 by pussy lipz April 21, 2018
one of the best rappers ever🤣💯💯💯
person 1: hey you like 1600j
person 2: yea let’s make out
person 1: bet🤣💯💯
1600j by urgfboi June 30, 2021
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
korean word for madam, older woman
Ajumma wait a moment
Ajumma by aintnotinbutnice July 5, 2009
Word of the Day on September 30, 2026

Slop Grenade

When someone uses AI to generate a large document, slide deck, or piece of code/software and tosses it over the fence for you to deal with.
Chad: Hey Brent I sent you the new backend API change to review, it’s only 100 files changed.

Brent: he just tossed me a slop grenade
Slop Grenade by Joe Squid September 28, 2026
Word of the Day on September 29, 2026
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