An acronym, standing for: Rolling on the Floor Laughing my Fucking Ass Off out Loud. Usually used when something is the highest level of funny.(Usually used in Texting and/or IM'ing.
(IM)
UrbanDictionary321: My ROFL COPTER goes SOI SOI SOI.

NaziLeprechaun666: ROTFLMFAOOL!!!!!!!
by Justin McIsaac May 8, 2008
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JOHNNY: Hey Mike, remember when we saw Dumb and Dumber for the 1st time when it was in theaters in 1994?
MIKE: Yeah! When it came to the part when Harry was shitting on the toilet, I was ROTFLMFAOOL!!!
by CoolDude500 April 23, 2020
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rollin on the floor laughing my fuckin ass off out loud
That kid just major fail on that treadmill ROTFLMFAOOL (TxTn this tho)
by the.shiznit October 25, 2009
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Rolling On The Floor Laughing My Fucking Ass Off Out Loud
(the new "lol")

Combining; Rofl, Lol, Lmao or Lmfao, to make one giant acronym of awesomeness.
Person A:She went around giving random guys she doesn't even know her number last night.

Person B:Wow what a slutty whore!

Person A:I know! She does it all the time! Its so pathetic.

Person B:Very pathetic, and desperate too...

Person A: But I guess in order to be a slut or a whore, you actually need to be able to get guys...

Person B:...rotflmfaool!!!
by Outlaw52493 August 25, 2010
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