Abbreviation for "Laughing Out Loud In Real Life." It is used over the internet to express that you aren't just laughing on the internet, but in real life as well.
Kenneth: I failed my Spanish test today.
Julian: lol irl
to laugh out loud in real life.
usually when people say lol they are not laughing irl, but when you say lol irl, you are laughing really in real life.
Maggie: Knock knock
Annie: Who's there?
Maggie: YO MAMA
Annie: OMG I just snorted and spit out my coffee! lol irl.