The Hesco Barrier is both a modern gabion used for flood control and military fortification. It is made of a collapsible wire mesh container and heavy duty fabric liner, and used as a temporary to semi-permanent dike or barrier against blast or small-arms. It is used on nearly every United States Military base in Iraq as well as on NATO bases in Afghanistan.
To Hesco Barrier It is to use the Hesco Barrier as a trash disposal by throwing things in it. It is also mostly used to take a piss on when the restroom is to far from the living quarters.
PVT Joe Snuffy: "Damn dude i need to pee but the restroom is frikken far and its cold as f**k outside."
PVT Tard: "Damn sucks for you man."
PVT Joe Snuffy: "Fuck it imma Hesco Barrier It."