The KSI species is very special. Only one of it's kind. It's a wild animal, and can be seen making weird videos.
by UrFuckingMomGay August 24, 2018
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
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.
by BiggerNib May 2, 2019
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.
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
by Ahbaiyedeagen May 31, 2021
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.
by allowitfam February 27, 2021