| Abbreviation | Definition |
|---|---|
| JM | Jong Man |
| JMB | Java Music Brain |
| JMI | Jo And Mal Invasions |
| JMM | Jisim Mouthed Moron |
| JMU | Just Missed the University |
| JMU | Just Missed UVA (University of Virginia) |
| JOB | Journey Of Business |
| JOB | Journey Of the Broke |
| JOB | Just Obey Boss |
| JOB | Just Out of Bondage |
| JOBC | Jerk Off Before Complementing |
| JOC | Jack Off Club |
| JOE | Jellyfish Oscillating Easily |
| JOEY | Just One Effeminated Youngster |
| JOG | Jay's Other Gift |
| JOHNDEERE | Junky Old Hunk of Nothing Dang Engine Exerts Retirement Early |
| JOK | Joke |
| JOKE | Joy Of Kids Entertainment |
| JOMO | Joy Of Missing Out (a backlash against FOMO) |
| JON | Jonathick |