| Abbreviation | Definition |
|---|---|
| JAIS | Just As I Suspected |
| JAJ | Just Ask Junior |
| JAJAJAJA | Someone laughing in Spanish in a chat. |
| JAL | Just Another Lamer |
| JAM | Jobs And Money |
| JAM | Judging All Mankind |
| JAM | Just A Minute |
| JAM | Just Act Medicated |
| JAM | Just Ask Me |
| JAMF | Jive A** Mother F***ers |
| JAP | Japanese American Princess |
| JAR | Just Acting Right |
| JAW | Just Another Web |
| JAW | Just As Well |
| JB | Jail Bait |
| JB | Juicy Bod |
| JB | Just Because |
| JBH | Just being honest |
| JBIH | Just Because It's Hot |
| JBL | Just Barely a Little |