rofl

     

LOL (also written lol an any other combination) is a common element of Internet slang used, historically, on Usenet but now widespread to other forms of computer-mediated communication, and even spread to face-to-face communication. It is an abbreviation for "laughing out loud" or "laugh out loud". "LOL" is one of many initialisms for expressing bodily reactions, in particular laughter, as text, including initialisms such as "ROTFL" ("roll(ing) on the floor laughing"), a more emphatic expressions of laughter, and "BWL" ("bursting with laughter"), above which there is "no greater compliment" according to Magid. (Other unrelated expansions include the less common "lots of luck" or "lots of love".)

Found pages about rofl