OK, cool. closest to gotcha or sure in conversation. very similar to roger in CB usage.
Importantly, using "kk" instead of "Okay" avoids any suggestion of sarcasm or doubt. There are lots of ways of inflecting Okay. kk is just pure acknowledgement; your message is received. And it is fast to type.
A: I'll meet you in half an hour
B: kk
by AtomHammer April 22, 2015
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So, you're making your first ventures as an online gamer, and you keep seeing this odd expression "kk" and “KK”. People chat in the online game, sending kk messages left and right.

Well, this peculiar acronym expression stands for "Ok" or "message acknowledged". It is the same as nodding in person or saying "gotcha".
The other bit of history behind "kk" is the 1990's expressions "k, kewl". Translated, this expression meant "ok, cool", but was stylistically spelled otherwise. "k, kewl" undoubtedly also influenced the use of kk in today's online chatting.

The kk expression, like many other Internet expressions, is part of online conversation culture.

Reminder: 90% of the time, these expressions are typed in all lowercase letters. On selective occasions, you are welcome to use them in all capitals to express enthusiasm. Just remember not to type entire sentences in all caps, lest you be considered rude.
by AmirS March 4, 2008
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1: hey when u comming back online?
2: in an hour
1: kk
by Anonymous April 23, 2003
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used in texts instead of "k" because 1 k just looks lonely.
Jan: meet you in 10 min
Bob: kk sounds good
by hollapoppi March 23, 2013
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Online gaming/chat term. Used to express acknowledgment.
KneeOh123: I'll be back in five minutes.
MoreFeeuz: kk
by Tiefling November 15, 2004
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Used on messenger programs as a lazy way of typing ok.
devilfish says:
I'm not gonna b in college 2moro

twistedsistah says:

devilfish says:
kk? u kno ur 1 k off from being a racist bitch
by Turmi December 12, 2005
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A more fun version of "ok," or a more thoughtful verson of "k."
matt: why do you say "kk"?
michelle: its like "ok," but more thoughtful. i took the time to type an extra "k."

michael: why don't you say, "okay"?
michelle: too long.
michael: oh, so you care enough to type an extra "k," but not an "a" and "y"?
michelle: exactly
by michelle d June 28, 2005
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