jf 

in some cases it means 'just foolin'

john: do u wanna go out with me jaylah

jaylah: ofcouse john, r u serious??

john: nah,, im jf lol

jaylah: u asshole!!

jf by xTheeExquizitx October 20, 2010

JF 

This is a abbreviation and short for Justin Frink a fictional character who is native. Its stands for when someone gets there Facebook status change jokingly to something comical all in good nature and the someone gets all bitchy like a little girl and deletes you off there face book and puts a lock on there a computer and last but not least takes there hard drive off there Xbox so you cant play Gears of War all weekend

Bobby: "Dude I so just changed Jimmy's face book status too i love men"

Rick: "Dude i saw that shit it was funny and did you see Jimmy deleted you as a friend hahah"

Bobby: "Rlly ? Damn son i just got JF bad"

JF by Akwrx October 25, 2010

JF 

Common acronym used as an insult towards guys. The true meaning of JF is top secret, but in general applies to any player, jackass, bonehead, jerk, or piece of crap boy that you have had unfortunate dealings with.

"So then I found out he said the exact same thing to two other girls."
"Ew, what a freaking JF."

JF by Laza December 14, 2008

JF 

jf- jebac filio

"o patrz filio, ale cringe"
"racja, JF"

JF by pussytight69 June 8, 2022

JF'ed 

Just Fucked, usually describing someone's appearance.

Oh man, look at her hair, she looks JF'ed

JF'ed by Asizzler123 February 23, 2009

JF-8 

Synonym for Suicide

Actual meaning: JF - stands for Jocelyn Flores, a hit song created by rapper XXXTENTACION. 8 stands for the eighth line in Jocelyn Flores: "I'm in pain, wanna put ten shots in my brain".

So being in JF-8 mood is basically being suicidal.

Bro, I'm really down in that JF-8 mood.

JF-8 by Refine and Define May 2, 2021

JF'ing 

doing the sex on the HIGH IQ women whose minds can only be accessed by patriotic PhD holders from Quebec

Are you really JF'ing your sister?

It's called louv you eediot!

JF'ing by mgtow btw October 30, 2018