You might see this term in a video of how is twitter free. My research concludes to most probable definition is the following:
L - Laughing
M - My
A - Arteries
O - Out
You find yourself in a FaceBook group chat.
Hey Susan did you see that me-me is sent you?
Yes Geraldine it was delightful! I'm LMAO.
Launching missiles at orphanages.
Person A: Last night i was Lmao.
Person B: YOU WAS LAUNCHING MISSILES AT ORPHANAGES!!!
Person A: yes.
"LMAO" is an acronym that stands for "Laughing My Ass Off." It is an expression used to indicate that something is extremely funny and that the person is laughing hard. It is often used in text messaging, social media, and online conversations.
Joe: "Bob, did you hear the one about the chicken who crossed the playground?"
Bob: "No, what is it?"
Joe: "To get to the other slide!"
Bob: "LMAO, that's so bad but I can't stop laughing"
Joe: "I know, it's a classic one"
the short word for laughing my ass out
also a way to reply to everything
A:look at this dumb shii i found
B:lmao