A person who changes their facebook name, listens to sk8ter music, wants to drop out of engineering to become a musician, is obsessed NBA 2k and has a mother with a weird name.
The state of a person who has a greezing state of mind. Greez mode can be when someone is consuming large amounts of tasty food or beasting in a sport/game.
Bill: Are you ready to eat dinner?
Henry: Ya, I'm in greez mode.