be as poor as a church mouse
US /bi æz pʊr æz ə tʃɜrtʃ maʊs/
UK /bi æz pʊr æz ə tʃɜrtʃ maʊs/

1.
非常に貧しい, 一文無し
to be extremely poor; to have no money at all
:
•
After losing his job, he was as poor as a church mouse.
仕事を失った後、彼は非常に貧しかった。
•
They lived as poor as church mice for years before their business took off.
彼らは事業が軌道に乗るまで何年も非常に貧しく暮らした。