It’s raining cats and dogs!
Tuesday Oct 24th, 2017
The phrase “It’s raining cats and dogs” has several different origin theories. One is that when houses used to have thatched roofs, pets and other small animals (squirrels, groundhogs, etc.) used to nestle into the straw for warmth. When it would rain, however, the straw would become slippery and the animals would slide out, creating the illusion that it was literally "raining cats and dogs".