ROTFLMAOOLWALAHCOF Share definition Flag rolling on the floor, laughing my @$$ off, out loud while acting like a headless chicken, on fire personA- your mum suckles pigs personB- yes i am gay personA- ROTFLMAOOLWALAHCOF ROTFLMAOOLWALAHCOF by aston.w July 15, 2006 Get the ROTFLMAOOLWALAHCOF mug.