Английский словарь американских идиом - rain cats and dogs

or rain buckets or rain pitchforks {v. phr.}, {informal} To rain very hard; come down in torrents. * /In the middle of the picnic it started to rain cats and dogs, and everybody got soaked./ * /Terry looked out of the window and said, "It's raining pitchforks, so we can't go out to play right now."/