moonlighter

A member of one of the organized bands of desperados that carried on a system of agrarian outrages in Ireland.

Same as moonshiner.

One of a party who go about serenading on moonlight nights.

A moonshiner.

In Ireland, one of a band that engaged in agrarian outrages by night.

A serenader by moonlight.

One who works at a second job in addition to his main occupation.

A person who moonlights.

a person who holds a second job (usually after hours)