| Abbreviation | Definition |
|---|---|
| JPS | Just Plain Sucks |
| JPT | Just Party Time |
| JR | Just Relaxing |
| JRA | Just Riding Along |
| JRM | Just the Right Man |
| JS | Just Saying |
| JSA | Just Simply Awesome |
| JSLV | Just Live |
| JSM | Jabber Server Modules |
| JSP | Just Stay Put |
| JSS | Just Stand Still |
| JSS | Just Survive Somehow |
| JSU | Just Shut Up! |
| JSUK | Just So You Know |
| JSYK | Just So You Know |
| JT | Jive Talking |
| JT | Jive Turkey |
| JT | Just Teasin |
| JT | Just Terrific |
| JTB | Just The Best |