n. Tool or weapon composed of a pneumatic or hydraulic piston connected to a spiked shaft and recoil springs; Uses rapid compression to drive the piston forward which in turn drives a spike into an object, in a matter similar to that of a pneumatic hammer (jackhammer), only the spike goes far into the object and then retracts quickly, readying itself for another strike.
His armor was pierced by his enemy's pile bunker.
He used a pile bunker to remove some of the granite from a rock wall.
He used a pile bunker to remove some of the granite from a rock wall.
by Tonywolf September 15, 2006
by ed westerhouse October 12, 2003