Created in MMORPG to describe the act of releasing monsters onto a player in order to K.O. them.

(Monster Player Kill)
Guys, be careful, they plan to MPK us.
by Sunburntshadow November 02, 2004
Get a mpk mug for your friend Callisto.
Did you hear what she did? Now MPK. That's sucks bro.
by KomatoseBandit August 09, 2019
Get the MPK neck gaiter and mug.