A sandbag is a sack made of burlap or other materials that is filled with sand or soil and used for such purposes as flood control, military fortification, shielding glass windows in war zones and ballast.
Sandbagging Fortification War Zone Hesco bastion Circular Rot Gas balloon Woven Ballast Counterweight Set construction Dissipation Slurry Brickwork Shovel Portland cement Club (weapon) Dike (construction) Polypropylene Levee Rear-wheel drive Jute Explosion Weight training Sand Metaphor Slang Flood Weapon Soil Crime Military