what does fight like cats and dogs mean

Definition of fight like cats and dogs chiefly US, informal : to fight or argue a lot or in a very forceful and angry way a married couple who are always fighting like cats and dogs fight like cat and dog To constantly fight or argue. Those two fight like cat and dog, so please don't put them together on the project. fight like cat and dog Meaning argue jealously and violently all the time a situation where two people are continuously arguing or fighting with each other about a particular issue fighting or arguing a lot in quite a forceful and angry manner two conflicting parties are yet to come up with an agreement or a peaceful way of dealing with things violent and jealous disagreements between people who are not on good terms Example Sentences The married couple fought like cat and dog the entire time they were together. The politicians tend to fight like cat and dog during general elections.