KSI

Ksi-noun(Kay-S-eye) The dark skined ,bandana wearing ,5'11 feet Youtuber who will beat Jake Paul silly this coming year.
Ksi-verb(Kay-S-eye)To beat a person like the Youtuber KSI beats bearus

Yesterday a Ksi (noun) pulled a Ksi(verb) on someone who tried to attack him.

by The one who shall not pass July 27, 2020

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KSI

A YouTuber and boxer with a massive ass forehead, a shit beard and a shit trim

Person 1: have you heard of that guy KSI?
Person 2: yeah he has a dead hairline

by Evadence August 9, 2020

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KSI

A term used for a man who is NOT 6 feet tall, consistently uses his monthly listener count on Spotify to win arguments and gets bullied by their subreddit.

Person1: Oh hey is that KSI, and isn’t he a worse singer than Jake Paul

Person2 : How can anybody be a worse singer than Jake all he does is talk shit all day, get other people to write his song and spread COVID at parties.

by 7omm0 August 10, 2020

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Knowledge, Strength, Integrity, a man the beat Logan Paul and has a very limited vocabulary.

Oi, do you know KSI?
Oh yeah, the guy that always say "fuck you, cunt"?
Yea, thats him.

by lilxuxo June 11, 2020

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Ksi

Ksi is a rapper/YouTuber and sometimes does boxing he beat Logan Paul and soon to be jake Paul

“Ksi I subbed to your channel”

“Thanks now 1 question go”

by Huge hog June 11, 2020

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KSI

Cheeto haired fat nigga that gets hyped when he receives compliments about his new album dissimulation but all the people want to hear is offset, trippie redd and Lil baby. He also has a gay brother.

Guy 1: "Hey who's your favourite rapper?"
Guy 2: "KSIII"
Guy 1: *Proceeds to load Glock-9"

by RIKIIIIIII June 11, 2020

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