coerce,
hale,
pressure,
force,
squeeze to cause to do through pressure or necessity, by physical, moral or intellectual means :"She forced him to take a job in the city"; "He squeezed her for information"
A sandbag (floodbag) is a sack made of hessian/burlap, polypropylene 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. Advantages are that burlap and sand are inexpensive, and that the bags can be brought in empty and filled with local sand or soil.