LOL may refer to any of the following:
1. Shorthand for laughing out loud, LOL is an abbreviation used in online chats or posts to indicate that the writer finds something humorous. LOL is also less commonly short for lots of laughter and laughing online and is also often substituted by LAL, LAWL (laughing a whole lot), LOLZ, LUL, and LULZ.
Should I capitalize "LOL" or write it in all lowercase?
Although "LOL" is an acronym, today most people prefer to write "lol" in all lowercase.
2. Short for League of Legends, LOL is an online multiplayer game from Riot Games.
3. Although not as common as the above definition of LOL, this term can also mean lots of love and may be something added at the end of an e-mail, letter, or another correspondence.
4. Short for lots of luck, LOL is another way of wishing someone good luck. This term could also be used sarcastically as telling someone they don't have a chance.