鼠ねずみ穴あな

noun

rathole; mousehole

A hole made by a rat or mouse, or a hole as small as one made by such a rodent.

• 壁かべに鼠ねずみ穴あなを見みつけた。

  I found a rathole in the wall.

• 鼠ねずみ穴あなからネズミが出で入いりしている。

  Rats are going in and out of the rathole.