A spotlight or lamp mounted on a car.

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

plural of jacklight

(hunting, US, Canada) The action of the verb to jacklight; the act of illuminating an animal for the purpose of hunting.

present participle of jacklight

A hunter who jacklights.

plural of jacklighter

simple past tense and past participle of jacklight