ROFL full form

What does ROFL mean or stand for ?

ROFL is also used as ROTFL and means – rolling on the floor laughing.It is one of the oldest and most popular online chat slang acronyms in existence.Its been around since more than 2 decades ever since the AOL,Yahoo and MSN messengers were the only modes of online communication.ROFL is an emotional short form like LOL that is used when your chat partner says something funny and you want to express how funny you think it was.