What does the expression "It's raining cats and dogs" mean?

Question

Share an expression/idiom you use!

Answer 1

If you say it's raining cats and dogs, you mean that it is raining very heavily.  

Note: There are several possible explanations for this expression, but none of them can be proved. It may refer to the days when drainage in towns was so poor that cats and dogs  sometimes drowned in heavy rainfall. Alternatively, `cats and dogs' could be a corruption or  misunderstanding of the Greek word`catadupe', meaning `waterfall', so the expression would originally have been `it's raining like a waterfall'. The origin may also be in Norse mythology,  where cats and dogs were  sometimes associated with the  spirit of the storm.

Answer 2

"It's raining cats and dogs" is believed to be a Greek expression. In the Greek language, it derives from, 'cata doxa,' which means, "contrary to experience or belief." It means that it's raining unusually or unbelievably hard. An abnormally windy and rainy storm.

Answer 3

It's raining cats and dogs is an expression that means it is raining very hard.