A name given to possible the coolest person you will ever meet. A mattsmart is someone who is not the best of a friend, but can allways make you laugh even when they are not trying to. A maatsmart can normally be defined as the kid who shows no emotion and over uses sarcasim.
Person1: Hey Matt, I had a great dimora with your mom last night! It was awsome!
MattSmart: Well then...
MattSmart: Well then...
by willy 8146 March 21, 2009