ksi

A nigga with a carrot penis who defeated logan paul in a boxing match

oh he has a carrot penis, he must be ksi

by DarkAegis January 5, 2020

KSI

Someone who is not what they are or Fatneek
KSI stands for Kiss Simon Immediately

Your are a KSI because you were a Fatneek

by Neutralice March 13, 2022

KSI

Fatneek lookin ass. He a snake, he steals $100 k from Vik and gets abused by his reddit (which is totally fair). He is also a secret gay who had sexual affairs with his secret boyfriend Simon Miniminter behind his TV.

Hey, im a KSI. (meaning, im a snake)

by memebot_34 October 12, 2020

KSI

A person who has a massive forehead, shit hair, fat tits and tiny dick. Also they are always under six feet (height) and have a god complex.

Gosh! Jimmy is such a KSI!

by Rwayne the dock Johnson August 17, 2020

KSI

A badman

oladeji Olatunji/ BabaTunde/Nightmare/Miley Cyrus's fadda(father)/KSI

by ItzRuhan786 July 6, 2019

KSI

A black youtuber nigga with huge fore head that is part of the Sidemen

I am a fan of KSI

by nibba360 November 26, 2019

KSI

Ksi is a nigga mostly known for beating up his brother for fun. He hides his insecurities under his bandana and is always boxing.He is also friends with Randolph who is a fat fuck.

Yo is that KSI that nigga that’s friends with that fat fuck
Yes he also beats up Deji for joy

by BackUrMashAndBopWitADifrentSau May 2, 2019