Steelie

Noun

1. A zinc-coated steel one-cent (penny) coin, produced during World War II because of copper shortages.

   "the jewel of his collection, a steelie from 1943"

2. A steel bearing ball used as a marble.

   "the heaviest in his collection, an old steelie from the junkyard"

3. A steel wheel.

   "old Mopars wearing steelies with dog dishes"

4. A steel-toe boot.

   "Better wear your steelies when he's around. [implying that he is clumsy]"