| Abbreviation | Definition |
|---|---|
| JFU | Just For Us |
| JFW | Jackson Family Website |
| JFY | Just for You |
| JFYI | Just For Your Information |
| JFYK | Just For Your Knowledge |
| JG | Jolly Good |
| JGM | Just Got Message |
| JGN | Just Get Naked |
| JGR | Just Got Real |
| JHI | Mistype for HI |
| JHTWAS | Just Have To Wait And See |
| JI | Just In |
| JIC | Just In Case |
| JIM | Just-Ignore-Me |
| JIS | Just In Service |
| JIW | Jay Is Working |
| JJ | Jumping Jahosafat! |
| JJ | Just Joking |
| JJA | Just Joking Around |
| JJO | Just Jerk Off |