slang An initialism of "rolling on the ground laughing out loud," used in text messages and online communications to indicate that one thinks that something is extremely funny or ridiculous. Often spelled in lowercase letters. I swear, this comedian is so darn funny. I'm sitting here rotglol! You gotta see this video—it's a monkey riding on the back of a pig! ROTGLOL
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.