KSI

A raper who is very successful and make YouTube video and is a professional Boxer

Hay that is KSI from YouTube

by Tux_YT December 9, 2019

KSI

The bandana boy who beat the twat Logan Paul

He is really rich and made of nickel and gallium
He has some family issues going on right now
Subscribe to him!!

That guy looks like KSI

by Ndhfhdhnd December 11, 2019

KSI

They guy who beat Logan Paul in a split decision

KSI is a fatneek

by KSI is a bosssssss April 19, 2020

KSI

If you know a KSI then they would most likely ruin your family at christmas and never get invited to a roast ever again.

My friend KSI fucked his mum at christmas and was never invited back home.

by dead boyyyyyy May 21, 2020

KSI

Has dropped a solo album and is going to go baldski

Me: Have you listened to KSI's album yet.
My friend: Yeah, i cant wait for him to go baldski LMAO

by Jandol May 26, 2020

KSI

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

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