| Abbreviation | Definition |
|---|---|
| RBF | Really Big Fight |
| RBF | Resting B***h Face |
| RBF | Resting B*tch Face |
| RBGB | Read a Bit, Got Bored |
| RBGFE | Redbook Girl Friend Experience |
| RBK | Right Back |
| RBL | Reading Between Lines |
| RBR | Really Bro Really |
| RBR | Removed By Request |
| RBTL | Read Between The Lines |
| RBY | Right Behind You |
| RC | Real Cool |
| RC | Really Complicated |
| RCDD | Really Cool Data Dude |
| RCI | Rectal Cranial Inversion |
| RCM | Rec Crafts Metalworking |
| RCT | Random Convergance Of Thoughts |
| RD | Rude Dude |
| RD | Russian Doll |
| RDB | Random Drunk Bear |