from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. One who hunts at night using a jacklight - see Wikipedia article.
from The Century Dictionary and Cyclopedia
- n. One who hunts game with a jack.
Probably from jack, a male servant of any rank, later associated with a boy servant or any boy, and later still associated with knave (a rogue, thief, or deceitful man). (Wiktionary)