it actually means "ok ok" pero people use it with the meaning "alright"

it is most used in online games.
A: Hey lets team-up and kill that monster over there.
B: k k
by ExRsPlayer October 30, 2010
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Online: 1. A term of acknowledgement; esp. without particular interest.
Let's go rent some pornos.
k.
by Brian Black February 27, 2003
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when someone says something mean: k
when someone says something nice: k
when someone is annoying: k
when someone tells a dumb story: k
when someone you don't like walks in the room: k
when someone tells you to do something: k
when you get yelled at: k
Teacher: "You are a disgrace to your parents"
Me: "k"
by hahak May 25, 2012
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the ultimate response to someone you don't like or when you don't care what the person is saying.
You: Dude. Your fucking ugly. I don't see how anyone could have any interest in you at all!
Me: K.
You: ....
by #1 Twerk Bitch August 31, 2013
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What you text someone when you dont give a fuck about what they say and just want to piss them off.
Thomas: Stop sending dick pics loser
Matt: K
by Fuck life. January 12, 2015
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Quite literally a slap across the face.
Jesicca: Coming out tonight?
Charlotte: No, I can't arranged something else.
Jessica: k. -signs out.
by ambzzsimm December 9, 2010
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1: the response a girl uses when she is pissed off at you, if you dont tell her what she wants to hear, or if you are just straight up annoying

2: the shortened version of "okay"

3: the letter people use when they are to lazy to say okay
boy: "you are a b*tch"
girl: "k"

guy 1: "lets go get some food"
guy 2: "k"

friend 1: "ill talk to you later"
friend 2: "k"
by wolfmeister January 15, 2011
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