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
Person2: Holy shit! Really?
Person: Nah.
Bob: Leafy is kinda retarded. jk
Eric: u better be jokin you fucking faggot. kys
by Speedemonic August 19, 2016
Get the JKmug. JK sings Euphoria
by BlueParrot June 30, 2020
Get the jkmug. 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
by TRIGL3T February 5, 2022
Get the JKmug. 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"
by Rashnee June 2, 2005
Get the JKmug. SO BORED lets type the fingering of megalovania. ;kikj jk ;kikj jk ;kikj jk ;kikj jk ;kikj jk ;kikj jk ;kikj jk ;kikj jk ;kikj jk ;kikj jk ;kikj jk ;kikj jk
by Ganon_K June 18, 2021
Get the ;kikj jk ;kikj jk ;kikj jk ;kikj jk ;kikj jk ;kikj jk ;kikj jk ;kikj jk ;kikj jk ;kikj jk ;kikj jk ;kikj jkmug. by Erudite127 May 3, 2018
Get the JKmug. 