What is the full form of LMAO

LMAO: Laughing My Ass Off.

LMAO stands for laughing my ass off. LMAO is one of many common words used in text messaging, instant messaging, chatting, and on Facebook and Twitter.

Typically people use it in written conversations to show that they think something is funny.

LMAO came about at the beginning of 1990s, and the people who used it first were early adopters of online communication. Today, it’s a part of textspeak and Internet slang. It’s a lot more convenient to write lmao than “that was funny” or “that really made me laugh.”