What is lmao?

"LMAO" is an acronym that stands for "Laughing My Ass Off." It is commonly used in digital communication, such as texting, social media, and online chats, to express that something is very funny or amusing. It's similar in meaning to other internet slang like "LOL" (Laughing Out Loud) or "ROFL" (Rolling On the Floor Laughing). LMAO is part of informal language used to convey humor and amusement quickly and succinctly in written form.