rain cats and dogs
US /reɪn kæts ænd dɔɡz/
UK /reɪn kæts ænd dɔɡz/

1.
chover canivetes, chover a cântaros
to rain very heavily
:
•
I can't go out now, it's raining cats and dogs!
Não posso sair agora, está chovendo canivetes!
•
We had to cancel the picnic because it started to rain cats and dogs.
Tivemos que cancelar o piquenique porque começou a chover canivetes.