Evan, Marshall, and Andy's definitions
a sexual act where the male shits on his partners asshole while he/she has their ass in the air.  the male then packs the shit into the asshole such as you would gunpowder in the barrel of a musket.  the receiving partner then power shits it out like a musket.
by Evan, Marshall, and Andy February 6, 2008
 Get the the musketmug.
Get the the musketmug.