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

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KSI

Ksi is a black dirty nigger who has a brother that made a Diss track on him including all his 'nemesis' which is better than any other song he has made in his entire music career

Ksi is a dirty nigger who has no taste in music.

by Ksithenigger November 14, 2019

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KSI

KSI is a big online influencer who always gets bullied by his fans on reddit.

His fans often call him a "snake" or a "Fat neek"

KSI is a Snake after he stole from wor Vik
Harry once said "KSI is a fatneek"

by Sunderland is dog shit October 28, 2020

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ksi

a person with a strong ashy elbow that can knock a 40 year old out cold

that dude with a massive forehead and snake hairs is ksi

by urbenwrongspell June 6, 2023

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KSI

Ksi is a British youtuber who bullies vik
Full form of ksi is knowledge snake integrity
Can be easily identified by his black snake hair

Oh look that's ksi the fatneek

by Knowledge snake integrity October 5, 2020

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An african youtuber/boxer/rapper orginated from England, Watford. But claims himself as a nigerian.
K="knowledge"
S="strength"
I= Intergrity
Famous quotes
Allow it fam, gangshit, for fuck sake man, you guys are pricks, shut up, kilode, akneehow, etc
Other Names:
Follabi, Babatunde, Sir Theodore the 3rd, fatneek

KSI: Ah ah, kilode, its nice to see you ah!
Tobi: Ah ah, my nigerian brother ksi!
____________
Harry: KSI is a fatneek

by The Aquarium Lad December 14, 2020

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