LMAO — laughing my ass off LOL — laughing out loud, or lots of laughs (a reply to something amusing)

What does LMAO stand for clean?

Overall, the abbreviation LMBO stands for laughing my butt off. This trending internet slang acronym is used as a clean version of LMAO, which stands for “laughing my a** off.” One might choose to use the acronym LMBO in a casual conversation in which it is inappropriate to use curse words.