KSI

KSI is the equivalent of a fatneek with a big forehead.

KSI is a fatneek 😳

by TommyShelbyInnit July 7, 2021

KSI

A monkey with a small peinis with no hair on a beard and he sucks off simon and bully vik #freevik

Hello have you seen KSI oh yh the monkey with a small peinis with no hair on a beard and he sucks off simon and bully vik yh i know him

by Stepbro X Step bro August 23, 2020

KSI

nigga who thinks he can rap

ksi

by AKOOO June 10, 2019

KSI

A fat monkey who states that he is "bulking" but is really being an african who has been starved for 3 weeks and in an abandon buffet. Nigger.

Hey Joe there is a KSI in here!

by BiggerNib May 2, 2019

KSI

KSI stands for one thousand pounds per square inch. Or a fat Neek who cannot box at all. And has a dead trim as well as a shite beard.

Girl 1: EWWW! You know KSI that fat Neek?.
Girl 2 : Yeah he's so fat and ugly and bad at boxing. And don't get me started on his dead trim LMAO.
Girl 1: Also his beard is shit.

Girl 2: LOL! True.

by ---Ace--- September 19, 2020

Ksi

The fatneek that we all know and love

The person we abuse on a daily basis (as a joke)

Ksi

Knowledge

Strength

Integrity

by Ahbaiyedeagen May 31, 2021

KSI

Lord Olajide Olayinka Williams Olatunji is British YouTuber,rapper.professional boxer and internet personality from London.His known as KSI and he is also part of the British YouTube group Sidemen.He is one of the best YouTubers the world has ever had,he has proved many people wrong,he beat Logan Paul twice,and shits on Jake The Cancer Paul.

Guy 1: Broo,did you see how KSI destroyed Logan Paul?

Guy 2: Yeah bro,KSI violated him.

by allowitfam February 27, 2021