Learn English Online - Idiomatic Expressions
Definition of Idiomatic Expressions

What does as poor as a church mouse mean?
Meaning of idioms with examples...
as poor as a church mouse
If someone is as poor as a church mouse they are extremely poor.An other similar phrase is hungry as a church mouse.
The phrase is derived from the fact that church buildings don't store or provide food and therefore mice in such buildings were utterly destitute.
Example(s):
He is as poor as a church mouse; don't ask him to donate anything.
This idiom is in the religion category