Where did the term raining cats and dogs come from?
For the Idiom “Rain Cats and Dogs” I have heard one other explanation. In old England when people’s cats and dogs died they would simply throw them into the gutter or alley with the garbage. If a strong enough rain came through it would flood the gutters and alleys to the point where all the dead cats and dogs would begin to float down the streets. Therefore very harsh rains were associated with cats and dogs.