be raining cats and dogs

Meaning

1. Oxford100% of films

   to be raining heavily

   It's raining cats and dogs!

In the movies · 1

• It's raining cats and dogs!Shine1996
• It said it was going to rain cats and dogs.The Great Muppet Caper1981
• Last year when I was in Miami it rained cats and dogs the whole time.Funny Games2007
• It's raining cats, dogs, and Democrats out there, so this had better be worth it.Changeling2008

From the same entry

• come rain, come shine
• right as rain
• it never rains but it pours
• rain on parade
• be rained off