Определение и Значение "[fight] like cats and dogs"

What is the origin of the idiom "fight like cats and dogs" and when to use it?

The idiom "fight like cats and dogs" has its origins in the age-old perception of the inherent animosity between cats and dogs, two species often considered natural enemies. The phrase likely evolved from the tendency of cats and dogs to engage in aggressive or confrontational behavior when they interact. The idiom is now used metaphorically to describe intense and frequent conflicts or arguments between individuals, emphasizing the severity of the discord by invoking the notion of a perpetual and fierce rivalry.