( BrE , informal ) to leave a place suddenly and secretly at night, usually in order to avoid paying money that you owe to sb
DO A MOONLIGHT / MIDNIGHT FLIT
Meaning of DO A MOONLIGHT / MIDNIGHT FLIT in English
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005