RichThesaurus
pok kai
vs
poor as a church mouse
pok kai
adj
Having no money; broke; bankrupt.
poor as a church mouse
adj
Very poor, to the point of starving or begging; utterly destitute.
How often have the words
pok kai
and
poor as a church mouse
occurred in a corpus of books?
(source:
Google Ngram Viewer
)