ramrod; rammer; tamping rod
A rod used to push or tamp down a charge in a muzzle-loading firearm or to pack material into a container.
cattle prod; goad
A stick or rod used to prod or drive cattle; often a pointed or electrified tool.
Old guns came with a ramrod for loading bullets.
They use a cattle prod when moving cows on the ranch.
Compound of 突き (tsuki, 'thrusting') + 棒 (bō, 'rod, stick'). The exact historical derivation is uncertain, but the word transparently describes a thrusting rod.