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battosai 

A person who shanks good in cs and pwns all your asses his cs name is b.LeG3nD5. // .w4r.Ldr.
battosai by Wenz September 10, 2003

Hitokiri Battousai 

The name given to Himura Kenshin during the Bakumatsu, the Meiji Revolution, in the anime Rurouni Kenshin. It means 'Battousai the Manslayer', when translated literally. 'Battousai' is taken from the word 'Battoujutsu', which is the art of drawing a katana and slashing with it all in one movement.

Kenshin retains the name throughout the Rurouni Kenshin OVAs and the original series. It is a name which strikes fear into the hearts of his enemies.

In the original series, Kenshin suffers from split personality disorder, one side is the humble wanderer Kenshin and the other is the Hitokiri Battousai Kenshin. This is sometimes referred to as 'transforming into the Battousai', a prospect which frightens Kenshin and his friends immensely.
Shinsengumi Soldier: Red hair and a cross-shaped scar!

Shinsengumi Soldier 2: It's the Hitokiri Battousai!

Battousai 

The nickname of Kenshin Himura in the Tokugawa era when he was a bloody assassin.
Oh no, is Battousai!!! Run!!!
Battousai by Samurai Katsu September 3, 2003

Battousai 

1. Master of drawing the sword, roughly translated.
Battousai by New September 13, 2003

battotai 

The Imperial Japanese March. The name adapted from the Battōtai guard in the Satsuma Rebellion, was published in 1885. The song was used throughout The Second World War. Battotai still used to some extent today, usually in memes such as Hirodripto (Hirohito Drip) and the music of the piece can still be heard in Japanese Marches to this day.
John: “Jack, what is your favorite marching song?”
Jack: “Although Erika is very popular, my favorite marching song is Battotai.”
battotai by RushedLMAO June 12, 2022

Batwosai 

A fart that smells so bad it is off the hook.
Paaaaaaaaarrrrrrrrrp

Jeez, man that was batwosai
Batwosai by Norra Eswort October 21, 2008
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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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