It's raining cats and dogs
US /ɪts ˌreɪnɪŋ ˌkæts ənd ˈdɔɡz/
UK /ɪts ˌreɪnɪŋ ˌkæts ənd ˈdɔɡz/

1.
es regnet in Strömen, es schüttet wie aus Eimern
raining very heavily
:
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I can't go out now, it's raining cats and dogs!
Ich kann jetzt nicht raus, es regnet in Strömen!
•
We had to cancel the picnic because it was raining cats and dogs.
Wir mussten das Picknick absagen, weil es in Strömen regnete.