Everyday Language: A Podcast For English Learners

Hello and welcome to the Everyday Language for English Learners Podcast. In today's episode, I want to talk about the idiom "raining cats and dogs".  So this is a  really famous idiom, I think because it's a very-it's easy to imagine. It's quite easy to picture cats and dogs coming from the sky.  But what does it mean? Does it actually mean to rain cats and dogs?