jacklight

Etymology

 * . Probably from, 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.

Noun

 * 1)  A spotlight or lamp mounted on a car, boat or pole, etc. to aid in hunting.

Verb

 * 1)  To shine a jacklight or spotlight on an animal, usually a deer, to aid in hunting at night.