n. & v.
n. a bag filled with sand for use: 1 (in fortification) for making temporary defences or for the protection of a building etc. against blast and splinters or floodwaters. 2 as ballast esp. for a boat or balloon. 3 as a weapon to inflict a heavy blow without leaving a mark. 4 to stop a draught from a window or door.
v.tr. (-bagged, -bagging) 1 barricade or defend. 2 place sandbags against (a window, chink, etc.). 3 fell with a blow from a sandbag. 4 US coerce by harsh means. sandbagger n.