Moonlighter \Moon"light`er\ (m[=oo]n"l[imac]t`[~e]r), n. One who follows an occupation or pastime by moonlight; as: (a) A moonshiner. (b) In Ireland, one of a band that engaged in agrarian outrages by night. (c) A serenader by moonlight. [Local, U. S.] (d) One who works at a second job in addition to his main occupation. [Webster 1913 Suppl.]