便べん所じょ虫むし

noun

toilet insect; bugs found in toilets

Colloquial term for insects commonly seen in bathrooms or toilets, such as drain flies or silverfish. Not a formal biological term.

• トイレに便べん所じょ虫むしがいたから、掃そう除じした。

  There was a toilet insect in the bathroom, so I cleaned it.

• 便べん所じょ虫むしって、正せい式しきな名な前まえじゃないんだよね。

  You know, 'toilet insect' isn't the official name, right?