| | RME | | Rolling My Eyes |
| | RML | | Read My Lips |
| | RMLB | | Read My Lips Baby |
| | RMW | | Read , Modify, Write |
| | RMX | | reverse mail exchange |
| | rna | | RiboNucleic Acid |
| | rna | | Ring No Answer |
| | rna | | Ring, No Answer |
| | ROCE | | Return On Capital Employed |
| | rodc | | read only domain controllers |
| | rofdol | | rolling on floor dying of laughter |
| | rofflmfao | | rolling on f**king floor laughing my f**king ass off |
| | rofflmfao | | rolling on the floor laughing my f**king ass |
| | roffnar | | rolling on the floor for no apparent reason |
| | ROFLAHMS | | Rolling on the Floor Laughing and Holding my Side |
| | ROFLAHMSL | | Rolling On the Floor Laughing And Holding My Sides Laughing |
| | roflao | | rolling on floor laughing ass off |
| | ROFLAPMP | | ROFL And Peeing My Pants |
| | ROFLASC | | Rolling On the Floor Laughing And Scaring the Cat |
| | ROFLASTC | | Rolling On the Floor Laughing And Scaring The Cat |
| | ROFLASTD | | Rolling On the Floor Laughing And Scaring The Dog |
| | ROFLGO | | rolling on floor laughing guts out! |
| | ROFLKAS | | Rolling On Floor Laughing, Kicking And Screaming |
| | ROFLMAOAY | | ROFLMAO At You |
| | ROFLMAOBT | | rolling on floor laughing my arse off big time |
| | ROFLMAOOL | | rolling on the floor laughing my ass off out loud |
| | ROFLMAOPIMP | | Rolling on floor,laughing my ass off, pissing in my pants |
| | ROFLMAOPMP | | rolling on floor laughing my arse off peeing my pants |
| | ROFLMAOWTIME | | ROFLMAO With Tears In My Eyes |
| | ROFLMFAOTIH | | rolling on floor laughing my f**king ass off till it hurts |
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