raining cats and dogs

(idiom) a lot of rain, heavy rain

Example Sentence:

If you go to Vancouver in the winter it is always raining cats and dogs.

Oh no, it’s raining cats and dogs outside, and I forgot my umbrella!

Similar idioms:

1. come down like cats and dogs
2. pissing
3. like herding cats
4. call one’s dogs off
5. let sleeping dogs lie
6. give someone a hand