Creeper

noun

1. A person or a thing that crawls or creeps.
2. (often in the plural) A one-piece garment for infants designed to facilitate access to the wearer's diaper.
3. A device which allows a small child to safely roam around a room from a seated or standing position.
4. A metal plate with spikes, designed to be worn with shoes to prevent slipping.
5. A spur-like device strapped to the boot to facilitate climbing.