Definition from Wiktionary, the free dictionary
moonlighter (plural moonlighters)
- A person who moonlights, or works a second job on the side.
- (US, regional) One who serenades by moonlight.
- A moonshiner, who makes illicit alcohol.
- (Ireland, historical) One of a gang who used violence, especially at night, to promote agrarianism in Ireland during the Land War of the late 19th century.
person who works a second job