FLY-BY-NIGHT


Meaning of FLY-BY-NIGHT in English

You old fly-by-night; an ancient term of reproach to an old woman, signifying that she was a witch, and alluding to the nocturnal excursions attributed to witches, who were supposed to fly abroad to their meetings, mounted on brooms.

Slang English vocab.      Английский сленговый словарь.