颠沛流离
Live a vagabond life.
Here today and gone tomorrow.
Have got the key of the street.

eg：We all lived a vagabond life during wartime.

中英俚语俗语来源：论语：“造次必如是，颠沛必如是。”

同义词：漂泊不定 A bird of passage.
反义词：安家落户 To settle down.