J

Slang for crystal meth. Shortened from the word "Jib" which is what crystal meth was commonly called in Atlantic Canada until J took over.

Hey, do u have a couple points of J I could score from you?

Don't mind him, he's so high on J that he may never sleep again.

by Runtz420 December 3, 2025

/j

joking

A tone indicator placed at the end of online messages to show that they are said in a joking manner, not to be taken seriously.

A: I hate people who curse. If you've ever said a bad word, block and unfollow me right now. /j

by demonkoala October 14, 2020

[J]

on your own. commonly used while on phone or txting

im on my j's
be on your j's

by B247E January 4, 2005

/j

/j is part of a tone/emotion tagging system over text. It means joking, hence what the ‘j’ is standing for. So this tone tag is placed after a joke that was sent over text.

It is one of many ways to convey what the tone, lightness, seriousness, and humor is used in a text. You place it at the end a message.

This system was created for and by neurodivergent people who struggle to read the intended tone of something said over text, but everyone can and should use them. There are many others such as /srs (serious), /s (sarcastic), /lh (light-hearted), /hj (half-joking), etc.

/srs

HELP ME I CANT BEKIEVE YOU SHSJAJAKKSKA /j

by peachiejam October 22, 2020

/j

A tag used to signify if a statement is a joke. Commonly used on Twitter, Reddit, and other text-sharing social platforms.

OMG If Ariana Grande doesn't release a new song soon, I'm gonna hunt her down and light her house on fire /j

by ChickenScrxtch82 January 3, 2021

J*

Short for "Jeffree Star"

Lawrah = OMG I luv J*
Steph = who?
Lawrah = Jeffree Star dumbshit.

by holyshititssteph October 13, 2007

:j

a smirk.

<qwert> Why did the chicken cross the road? To get to the other side! guffaw!
<yuiop> :j

by Neoguardian October 24, 2003