Rolling on the floor laughing. Typically used by people who are too lazy to press the rest of the keys on their keyboard needed to communicate in English.
Person1: ...and then I hit my head.
Person2: rofl!
Person1: Shut up. You sound like a friggin' twit. I hereby revoke your right to speak my language.
ROFL is an abbreviation for 'rolling on (the) floor laughing', usually used in a similar context as 'LOL'.
ROFL is usually used with text talk and/or incorrect grammar.
LOL !!! That joke left me ROFL!
Person 1: (Insert funny joke here) Person 2: LOL! Person 3: ROFL!!!!!
Acronym for Rolling on the Floor Laughing. A word that only nuubs and nerds care to say aloud. And a word more commonly used then lol. It can be mixed with other words, phrases, and acronyms, to form awkward AND unnecessary chat slang, such as ROFLCOPTER, or ROFL MY WAFFLES (lego me eggo), or ROFL MUH NIG!
On AIM:
"Yo dude, I just dropped my iPod touch in the toilet!"
"ROFL!"
"Haha yes I agree! StupidApple!"
In Reality:
"Hey dude I just lost all my lunch money on the bus!"
"ROFL!"
"......You kiss your mother with that mouth?"