jacklight
Etymology
* jack + light. Probably from jack (“a male servant of any rank”), later associated with a boy servant or any boy, and later still with a knave: a rogue, thief, or deceitful man. * Possibly also related to Spanish jaque (“a bully”).
noun
- A spotlight or lamp mounted on a car, boat or pole, etc. to aid in hunting.“It was a long, low roadster, with a jacklight.”
verb
- To shine a jacklight or spotlight on an animal, usually a deer, to aid in hunting at night.