It means Rolling On the Floor Laughing my My Freaking A** Off Out Loud. It is a combination of rofl, lmfao and lol. Basically a really long way to say you are laughing hard.
That made me #roflmfaool so hard right now, I had a heartattack from laughing.
abbreviation for: "rolling on floor laughing my head off"
many would prefer "rolling on floor laughing my ass off", but this is for those who don't wish to swear.
A:*tells a joke*
B: OMG!!! ROFLMAO THATS HILARIOUS!!!
A: dude dont swear B: w/e roflmho. happy now?