1 definition by A Loyal Theorist
Matpat is a diet coke addict who did in someway get his youtube channel ( The Game Theorist) famous. He does livestreams on youtube with his wife steph. He even has a cat called Catpat and he is the only reason anyone watches the livestreams. Matpat is a real nerd.
by A Loyal Theorist June 2, 2016