| Abbreviation | Definition |
|---|---|
| JJWY | Just Joking With You |
| JJY | Just Joking You |
| JK | Jiminy Kricket |
| JK | Joe Kool |
| JK | Joking |
| JK | Just Kidding! |
| JK | Juz Kiddin |
| JKG | Just Keep Going |
| JKJK | Just Kidding, Just Kidding (the latter cancels the former) |
| JKL | Just Kidding Lol |
| JKL | Just Kinda Lonely |
| JKM | Just Kill Me |
| JKO | Just Kidding Okay? |
| JKP | Just Keep Posted |
| JKP | Just Kidding Peeps |
| JKR | Just Kidding Right? |
| JL | Just Living |
| JL | Just Looking |
| JL | Just Lost |
| JL | Just Lunch |