| J/C | Just Checking |
| J/J | Just Joking |
| J/K | Just Kidding |
| J/O | Jerking Off |
| J/P | Just Playing |
| J/W | Just Wondering |
| J2LYK | Just To Let You Know |
| J4G | Just For Grins |
| J4T or JFT | Just For Today |
| J5M | Just Five Minutes |
| JAD | Just Another day |
| JAFO | Just Another F***ing Onlooker |
| JAFS | Just A F***ing Salesman |
| JAM | Just a Minute |
| JAS | Just A Second |
| JC | Just Curious -or- Jesus Christ |
| JDI | Just Do It |
| JEOMK | Just Ejaculated On My Keyboard |
| JFH | Just F*** Her |
| JK | Just Kidding |
| JM2C | Just My 2 Cents |
| JMO | Just My Opinion |
| JOOTT | Just One Of Those Things |
| JSU | Just Shut Up |
| JSYK | Just So You Know |
| JT | Just Teasing |
| JTLYK | Just To Let You Know |
| JTOL | Just Thinking Out Loud |
| JTOU | Just Thinking Of You |
| JUADLAM | Jumping Up And Down Like A Monkey |
| JW | Just Wondering |
|
