Also found in: Dictionary, Acronyms, Encyclopedia, Wikipedia.
rude slang An initialism of "rolling on the floor laughing my ass off," used in text messages and online communications to indicate that one thinks that something is extremely funny or ridiculous. Often lower case. I just saw a monkey riding on the back of a pig! roflmao
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.