A Pricker

1. One who pricks.
2. A tool for pricking.
3. A prickle or thorn.
4. Any of several American prickly woody vines of the genus Smilax; greenbrier.
5. One who spurs forward; a light-horseman.
6. A priming wire; a priming needle, used in blasting and gunnery^[1].
7. (nautical) A small marlinespike used in sailmaking^[2].