short for joking, that ppl type in e-mails, on the web, etc.
You're real ugly
jk, jk
by Rosey July 5, 2003
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Aw dawg you look like shit today, jk, you're ugly as fuck..
by gerndebaby March 28, 2014
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Meaning "Jerk Kill"

When your jerking off and you are rudely interrupted.
"I caught Abner Jerking off a little while ago"

"Brandon, that's such a jk"

"Yeah I know Truman now hes mad at me"
by Higherel July 15, 2009
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Self described as 'relentlessly mediocre', a jk (AKA 100% Pot Stirrer) is blissfully unaware of how exceptional he is. His logic, pun-worthiness and sexiness are solid 99 material making him a legen- wait for it (and watch out cause lactose intolerance) - dary catch!! Underneath the cruisy and INTP exterior, he is jacktually very loving, generous and is extremely capable in creating vivid and touching written work. And his toasties are platinum star level!! Watch out though: High odds of contact and stepping. I luff yew jk. What doing now?
jk: mediocris coluber tortuosus
AKA: the absolute jack-pot of humans, he gets a 7.
by miliemlml February 1, 2020
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A typical fire crotch who loves to complain and bitch about everything throughout the day.

Often liking to say Just Kidding to cover up his bitchyness.
Yea that sound's boring, JK im just broke.
by BFFL United. December 12, 2009
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In some fonts, most notably in Facebook chat, it resembles an incredibly infuriated man of oriental descent.
Person 1: Did you see that new anime?

Person 2: Dude, that guy with the hair was totally JK.
by Alex Atlantis April 20, 2009
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A guy in southwest louisiana whos nickname happens to be jk
JK is always getting mad because people make fun of his name.
by Jk Fayko January 12, 2008
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