The word 'LOL' doesn't have meaning anymore. Some people use to to imply they find something humorous, some people use it when they have nothing to say. This has taken away the meaning from the abbreviation, and therefore we need a word to signify that we are actually laughing in real life, and aren't saying it because we have nothing to say! RL means real life. LOL means laughing out loud. although you can replace the lol with whatever abbreviation you like. RLROFL, RLhehe, RLmuahaha, RLPMSL.