You can switch to one of the 3 final, hidden classes: the Farmer, the Duper, or the Modder.
Finish TVHM then run around fighting random bossess and enemies seeing how challenging everything is so max level.
That's The Farmer.
Farming and just playing the game are 2 different things. I don't understand why people believe you can't play the game without farming, duping, or both. --- Is cheating online in a cooperative game appropriate - Y=9 N =8