Ksi

A fat neek

You heard of that UK ksi he a pissboi

by Nigeriaboi123 September 9, 2020

ksi

ksi is 5 10

someone like ksi is a specific height

by william olatunji July 3, 2021

KSI

If you came here to find the defenition of KSI then you're oficially stupid.
its THE man the MYTH the LEGEND AKA Mr.Knowledge
sub to KSI and jj olatunji.

KSI beat the living bluetooth 4k fridge out of Jake Paul

by NOAH1818 June 6, 2021

KSI

Ksi means Knoledge, Strengh and Interity

ksi also is a youtuber that challenged logan paul to a boxing match, drew and is going to knock him out on november 9th
his also a nigger

KSI is a guy who will fuck the paul up

by FUCK LOGAN PAUL October 10, 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

An adult baby who is still crying over DanTDM’s tweet

“You know KSI?”

“Ohhh the British guy?”

by refutableodinthefirst January 3, 2025

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