An abbreviation for what you say when you make the biggest verbal mistake ever to one of your friends.
Person 1: Hey, your shoes suck.
Person 2: Huh!?
Person 1: jk lol.
by QuiteSeriousDefinitions August 4, 2021
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Abbreviation for ‘just kidding’ often used by kids and teens (teens mostly) when texting or when telling a joke.
Yes he does have a girlfriend........JK!
by The Smart zone November 17, 2017
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BTS younger member Jungkook.

Full name : Jeon Jungkook (therefore can also be referred as JJK)
It’s been ages since JK went live, what is he waiting for ?

I want the same tatoo as JK !

JK is so sweet
by D-2 May 25, 2020
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When someone is lazy and doesn't want to say just kidding and everyone just says sike now. Why are u still reading dis?
Browns were soooooo good last year. JK
by Kr1spyCh1ck3n October 9, 2019
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just kiding
I’m jk.
by AleP24 March 14, 2019
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