LMFAOBOAT Posted in L Best definition LMFAOBOAT laughing my ass off + boat = LMFAOBOAT wait, so there’s ROFLCOPTER and LOLLERCOASTER then what’s lmfao? LMFAOBOAT!!! How satisfied are you with the definition? Looking for LMFAOBOAT meaning? Delighted that you discovered the greatest determine on our web site! Recently this definition was actually observed 67 times.