| RA | Research Assistant; Resident Assistant |
| RAK | Random Act of Kindness |
| RBS | Really Big Screen |
| RE | REgarding |
| REMF | Rear Echelon Mother F---ers (eg |
| RFC | Request For Comments |
| RFD | Request For Discussion |
| RFT | Request For Thinking |
| RHIP | Rank Has Its Privileges |
| RL | Real Life |
| RLCO | Real Life COnference |
| RNA | Ring |
| ROFFNAR | Rolling On the Floor For No Apparent Reason |
| ROFL | Rolling On the Floor Laughing |
| ROFLAHMSL | Rolling On the Floor Laughing And Holding My Sides Laughing |
| ROFLASC | Rolling On the Floor Laughing And Scaring the Cat |
| ROFLASTC | Rolling On the Floor Laughing And Scaring The Cat |
| ROFLGO | Rolling On Floor Laughing Guts Out! |
| ROFLMAO | Rolling On the Floor Laughing My ASCII Off |
| ROFLMAOOL | Rolling On the Floor Lauging My Ass Off Out Loud |
| ROFLOL | Rolling On the Floor Laughing Out Loud |
| ROFLOLBAG | Rolling on the Floor Laughing Out Loud Busting a Gut |
| ROFLOLVH | Rolling On the Floor Laughing Out Loud Very Hard |
| ROFLWMK | Rolling On the Floor Laughing -- Wet My Knickers |
| ROFPML | Roll On Floor Pissing Myself Laughing. |
| ROFTTPOF | Rolling On the Floor Trying To Put Out Flames |
| RotK | Return of the King (a Tolkien work) |
| ROTBA | Reality On The Blink Again |
| ROTF | Rolling On The Floor |
| ROTFL | Rolling On The Floor Laughing |
| ROTFLAHMS | Rolling On The Floor Laughing And Holding My Side |
| ROTFLMAAOBPO | Rolling On The Floor Laughing My Ass And Other Body Parts Off |
| ROTFLMAO | Rolling On The Floor Laughing My Ass Off |
| ROTFSTCLMAAOBPO | Rolling On The Floor Scaring The Cat Laughing My Ass And Other Body Parts Off |
| ROTM | Right On The Money |
| RPG | Role Playing Games |
| RSN | Real Soon Now |
| RSVP | Repondez S'il Vous Plait (French |
| RT | Real Time |
| RTFI | Read The F---ing Instructions |
| RTFM | Read The F---ing Manual |
| RTFMA | Read The F---ing Manual A--hole |
| RTFMS | Read The F---ing Manual Sir |
| RTFQ | Read The F---ing Question |
| RTFS | Read The F---ing Source |
| RTI | Real Time Interruption |
| RTS | Read The Screen |
| RUMF | aRe yoU Male or Female? |
Unless otherwise noted, all photos and text is Copyright © Richard G Lowe, Jr.