In some parts of the world, it means taking a group poop... However, in cooler places, it means going out as a group of 3 or 4 males and attracting several females (hopefully 2 to 3 times the number of men) and slaying them with "swords" over the course of a weekend - while only answering to the names Athos, Aramis, and Porthos. There is also a point system for what you do with the females, and the winner is the strongest muskateer for that specific period of time.
Come on fellow boys, let us all go muskateering this weekend - all for one and one for all!
taking a poop with a group
Me and the boys headed off to go muskateering.