What is the origin of it's "raining cats and dogs"?

Hi Gabriela! That’s a great question. I also looked into it further to ensure accuracy.

The phrase "raining cats and dogs" means it's raining really hard. No one knows for sure where it came from, but there are some interesting ideas:

1. In old stories, cats were connected to storms, and dogs were linked to strong winds. So, people might have used "raining cats and dogs" to describe stormy weather. 
2. In England a long time ago, when it rained a lot, stray animals like cats and dogs sometimes got washed into the streets. This might have led people to use the phrase. 
3. Another idea comes from an old myth where dogs represented wind, and cats symbolized rain.

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Thanks, and I hope this answers your question!