KSI

Stands for Killing Service, Inc. One of the top elite Halo 2 clans. Many branches include KSI Firewall, KSI Power, etcetera etcetera. Has strong competition with MLG.

Even though everyone who plays Halo says they hate KSI, they'd suck a dick or two to get in.

by Squiz May 17, 2006

Ksi

A once toxic gay clan on halo to a black nigga man from the sdmn. anyone who holds ksi in their name in halo is now a Ksi fan

yo remember that gay clan ksi

by shadownigger October 01, 2019

Ksis

A special kind of kiss, created by two special faces at Keele University in the Spring of 2009

She gave him ksises because it was far better than giving him kisses, obv.

by Keele Beb April 17, 2009

KSI

A fucking dumb baboon african booty

scratcher fucking nigger cotton picker but is still my daddy

look at that KSI its that ugly nigger

by big daddy long slong October 24, 2019

Ksi

The man whose gunna save gib and slap the fuck outa Jake

I beat someone now I’m ksi

by Rambothegambo February 02, 2020

KSI

Best youtuber on the planet by far and did the world a favour by making the pauls his bitches he is a mighty character stronger than thanos himself!!!!!!

Ksi wears a bandana 24/7

by Backa665 October 22, 2018

KSI

a gay ass guy

KSI: Hey, I'm KSI, and I'm a gay ass guy (cue laughter)

by thetruetellerofWARDS October 19, 2018