motormacking Posted in M Best definition motormacking Chewing very loud, and fast with your mouth full, even with it closed. Did you hear that guy last night at the restaurant? Yeah he was motormacking. I so wanted to tell him to slow down, it was so annoying. How satisfied are you with the definition? Looking for motormacking meaning? Delighted that you discovered the greatest determine on our web site! Recently this definition was actually observed 21 times.