Definition
Used to describe very heavy rainfall.
滂沱大雨，傾盆大雨
I was planning to go for a walk, but it's raining cats and dogs outside now.
我原本计划去散步，但外面现在正下着倾盆大雨。
The game had to be postponed because it was raining cats and dogs outside.
比赛不得不延期，因为外面正下着倾盆大雨。
We were stuck inside because it was raining cats and dogs.
我们被困在里面，因为外面正下着倾盆大雨。