informal,noun,means cunt in persian language.
1 A pretty woman.
2 Nonsense,rubbish.
1 Look at that pretty girl,she's such a kos.
2 Hey man,don't said kos anymore!
by Mamrez Erfani April 19, 2008
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Kill On Sight

If someone is KOS that means you devour them right when you see them no questions asked.
Level 126: "Sorry kid but your clan is KOS so I've got to kill you."
Noob: "But I just want to play the game man, come on I'm almost done with this quest..."
by Angry Salamander October 27, 2005
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totally intoxicated
unable to stand / speak
short for "knocked out"
that boy drank too much - he's k.o.
by will December 11, 2003
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Verb;
A action comparable to dumbel-funded, meaning to absolutely knock someone out in the most ultimate of regards.
Guy: Did you see the fight between KSI and Logan-Paul?
Other Guy: Yeah! Logan got KOed!
by Salad_Dude September 17, 2018
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1. a knockout

2. to knock someone out
If he manages to KO him every time he'll be braindead pretty soon.
by Light Joker March 24, 2007
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Means that a player/person is beaten with ease without the player/person having a chance of survival/escape/healing/movement. Mainly a term used in runescape
1.Wow dude You koed that guy
2.you koed him with a 32-29 dag spec!
3.lmao he got koed as he spawned
by Ross Williams September 25, 2006
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