Seems to be some sort of game. Monday Morning Pickles? Middle Management Phuckups? More Mundane Pithiness?
I believe it means Massive Multiplayer – an online gave simultaneously played by a large number of people.
In MPSIMS, you mean? Monday Morning Post. Usually started by Rue DeDay, who must be on vacation.
Hey, I got two out of three in my first guess! 
Actually, due to Changed Life Circumstances, he switched responsibilities with his wife and got a job.