lol is an abbreviation for "Laugh out loud" and more annoyingly, "Leauge of Legends".
For example, if you Google it, all you'll see is fucking League of Legends gameplay.
1. "I get the joke, lol."
2. "I can't do homework right now, I'm playing LoL."
People that have bad spelling grammer or just lazy to say laughing out loud duh
If you don't know this your dumb it's Laugh out loud
And I was like lol
A bald guy with his hands up in the air in excitement.
George: Excited for the Weird Al concert tomorrow?
David: lol
used as a shortcut for the small sentence "laught out loud '' and is very widely used by teens and kids