A Ramrod

1. (firearms) Device used with muzzleloaders to push the projectile up against the propellant.

Synonym: gunstick

2. Ranch or trail foreman, usually the first or second person in charge. The person responsible for getting the work done.
3. (military) A World War II code name for short range fighter and bomber attacks to destroy ground targets, similar to circus attacks.
4. (slang) The penis.