Idiom of the day :- Fight like cat(s) and dog(s)

Usage, examples and definition of the Idiom :-

Since the beginning of time, cats and dogs have been natural enemies, and when they meet they usually get involved in fierce fights. From that, when people argue or fight bitterly they are said to fight like cats and dogs or fight like cat and dog. ‘If we invite the Smiths to our party, we can’t invite the Waltons. I don’t know why, but they fight like cats and dogs.