moonlight
US /ˈmuːn.laɪt/
UK /ˈmuːn.laɪt/

1.
fazer um bico, trabalhar por fora
to work at an additional job, especially secretly and without reporting the income for tax purposes
:
•
He had to moonlight as a bartender to make ends meet.
Ele teve que fazer um bico como barman para sobreviver.
•
Many teachers moonlight during the summer break.
Muitos professores fazem bicos durante as férias de verão.