Lmfaooym Posted in L Best definition Lmfaooyminternet An internet accronym for “Laughing my fucking ass off onto your mom” Johnny Lmfaooym’d after being Rick Rolled 3 times in a row. How satisfied are you with the definition? Looking for Lmfaooym meaning? Delighted that you discovered the greatest determine on our web site! Recently this definition was actually observed 75 times.