Definition of church mouse in English:

church mouse

noun

  • A mouse which lives in a church. Also figurative and allusive: a person likened to such a mouse (in terms of its proverbial attributes), especially in being impoverished or quiet.

Origin

Mid 16th century. From church + mouse. Compare German Kirchenmaus, Kirchmaus.

Pronunciation

church mouse

/ˈtʃəːtʃ maʊs/