"Irlol" stands for "I Really Laughed Out Loud." Since people tend to send "lol" whenever they find something funny rather than when they actually have laughed out loud, irlol is for those time when someone has in real life, actually laughed aloud.
"Did you see that new dank meme going around the internet?"
"No, send me it."
*sends dank meme*
"IRLOL"
Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
"Base we've got some square groupers floating outside of Miami harbor."