What does MP stand for?

While on the set filming The Mist, I fell in love with the MP's helmet. I took out the moustache that I made a couple weeks back, and a photo op was born. We came up with several other meanings for "MP" (Master Partier being one of my favorites) and had the crew add their own (two of which are too dirty to post here). Eventually, I settled on Mist Prankster*, after a prank war broke out between Shannon and myself versus Steve. Shannon and I won, after a nasty turn of events, in which Steve narrowly escaped losing his right eye (I suspect he was more upset about losing his hat).

Here is the list:
Mighty Pretty (Thanks Bill Sadler!)
Master Partier
Major Participant
Mad Props
Major Pain
Male Patrol
Mister President
Miss Prankster* (I modified it).
Mostly Positive
Morale Propagator
Mustache Perfector
Mostly Professional
Many Privates
Male Pirate
Mean Pooper (I thought I was alone!)
Miz Pac-Man
Mini Pizza
Meal Penalty Police
Morality Propagandist
Military Police (you fools) (Yeah, someone actually wrote that)
Midget Prostitute
My Pickle
Morgan Phairchild...Yeah, that's the ticket... (Someone actually wrote that, too)
Meat Puppet
Multiple Personalities
Mighty Powerful
Mister Potatohead (very appropro, since I gave Adam's Mister Potatohead a gold tooth)
Mist Patrol
Male Prostitute
Marriage Planner
Meat Packers
Mystical Pot
Missing Person
My Princess
Mies en Place (smarty pants)
Miss Pronounced
and lastly, UGH! Military Police you damn civilians!!