Definitions by Ð4\/3

LMMFARTFO 

Acronym for "laughing my motherfucking ass right the fuck off." Used by those infatuated with profanity yet too lazy to type complete words, or children amused by the word "fart."

Bill: I just beat my wife with a battering ram!
Bob: LMMFARTFO!
Bill: What?

LMMFARTFO by Ð4\/3 April 11, 2011