"cat and dog" meaning in English

{
  "etymology_text": "From the idea that cats and dogs are always fighting each other.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "cat and dog (not comparable)",
      "name": "en-adv"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English coordinated pairs",
          "parents": [
            "Coordinated pairs",
            "Terms by etymology"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "Coordinate term: cat and mouse"
        },
        {
          "text": "to go at each other cat and dog; to argue cat and dog"
        }
      ],
      "glosses": [
        "In a persistently argumentative or combative manner."
      ],
      "id": "en-cat_and_dog-en-adv-H0JqEk0M",
      "links": [
        [
          "argumentative",
          "argumentative"
        ],
        [
          "combative",
          "combative"
        ]
      ],
      "related": [
        {
          "word": "fight like cat and dog"
        },
        {
          "word": "hammer and tongs"
        }
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "word": "cat and dog"
}

{
  "etymology_text": "From the idea that cats and dogs are always fighting each other.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "cat and dog (not comparable)",
      "name": "en-adv"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adv",
  "related": [
    {
      "word": "fight like cat and dog"
    },
    {
      "word": "hammer and tongs"
    }
  ],
  "senses": [
    {
      "categories": [
        "English adverbs",
        "English coordinated pairs",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English uncomparable adverbs",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "text": "Coordinate term: cat and mouse"
        },
        {
          "text": "to go at each other cat and dog; to argue cat and dog"
        }
      ],
      "glosses": [
        "In a persistently argumentative or combative manner."
      ],
      "links": [
        [
          "argumentative",
          "argumentative"
        ],
        [
          "combative",
          "combative"
        ]
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "word": "cat and dog"
}