JK 

An acronym for "Just kidding" that's used as a shortcut, due to it being a common phrase used in texting. Sometimes, anti-social people on messaging boards use it at the end of their sentence after stating their opinion, or trying to roast someone because they expect someone to get triggered.

Person: One time, I went to McDonald's on Black Friday without realizing, and shit was insane man!
Person2: Holy shit! Really?
Person: Nah.

Bob: Leafy is kinda retarded. jk
Eric: u better be jokin you fucking faggot. kys

JK by Speedemonic August 19, 2016

jk 

JK is the acronym for the youngest singer of the South Korean band BTS

JK sings Euphoria

jk by BlueParrot June 30, 2020

JK 

A JK is the phenomenon when an empath name Kathy and an empath named Joshua combine there powers for the good of the 420 circle

Damn bro. I was sober then you JK'd me. Now I'm good

JK by TRIGL3T February 5, 2022

Jk 

Jew Kabob

The act of sticking a large pencil up a Jews ass just as their about to sit down

Jk - "yo, I jut made that kid Hayden a Jew kabob"

Jk by SussybakaVagina April 3, 2022

Jk 

A person who tries their hardest but always does terribly at whatever they are doing.

" i can't believe you died in the Gulag, you're such a JK "

Jk by Eyebrowsguy August 2, 2022

JK 

Abbreviation for "just joking"

Your best girl friend calls you gay or ugly. To assure you that she didn't mean to hurt your feelings, she says "JK dude, JK"

JK by Rashnee June 2, 2005

JK 

(abbrev. ) Jamatkhana (place of Ismaili congregation)

Rahim and Husayn are going to JK tonight. Are you going too?

JK by Erudite127 May 3, 2018