The ultimate insult. If someone texts you this, they're pretty angry or they just don't like you.
Text Message -

Alex: You still coming tonight?
Jess: Sorry I'm going to the cinema with Brad now
Alex: k.
by AliceJones__ June 29, 2010
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A phrase, meaning "This conversation is over."
him: I just don't wanna lose you!
her: k.
by sam fisher February 4, 2013
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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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