Mark the Great Posted in M Best definition Mark the Great To be the biggest of all douche bags. Being called “Mark the Great” is quite possibly the worst insult known to man. That guy is a worthless pile of horse shit. He must be related to Mark the Great. How satisfied are you with the definition? Looking for Mark the Great meaning? Delighted that you discovered the greatest determine on our web site! Recently this definition was actually observed 75 times.