RORL was invented when an
awesome person who we can't name made a type-o whilst trying to type ROFL, meaning rolling on floor laughing, since the "r" is right on top of the "f" so cut the
awesome person some slack. Then, the idiot whom the
awesome person was talking to decided to make a dumb acronym for RORL which was Rolling on Roof Laughing. Thus RORL was born and is now commonly used by people trying to mix it up so that they don't write lol ALL THE TIME!
Awesome person: Dude I haven't had Nesquik cereal in like 2 months; I miss it because it's the bomb! rorl
Idiot: Dude, dude, dude, dude, dude did you just say rolling
on the roof laughing?
Awesome person: As a matter of fact I did.
Idiot: Cool. I'm an idiot.