"lazy dog" meaning in English

{
  "forms": [
    {
      "form": "lazy dogs",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "lazy dog (plural lazy dogs)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "lazy dog bomb"
        }
      ],
      "categories": [
        {
          "_dis": "98 2",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "96 4",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "Ellipsis of lazy dog bomb."
      ],
      "id": "en-lazy_dog-en-noun-rByQQTQZ",
      "links": [
        [
          "lazy dog bomb",
          "lazy dog bomb#English"
        ]
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "ellipsis"
      ]
    },
    {
      "glosses": [
        "Used other than figuratively or idiomatically: see lazy, dog."
      ],
      "id": "en-lazy_dog-en-noun-T3A0Jy1S",
      "links": [
        [
          "lazy",
          "lazy#English"
        ],
        [
          "dog",
          "dog#English"
        ]
      ]
    }
  ],
  "word": "lazy dog"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English multiword terms",
    "English nouns",
    "Pages with 1 entry"
  ],
  "forms": [
    {
      "form": "lazy dogs",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "lazy dog (plural lazy dogs)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "lazy dog bomb"
        }
      ],
      "categories": [
        "English ellipses"
      ],
      "glosses": [
        "Ellipsis of lazy dog bomb."
      ],
      "links": [
        [
          "lazy dog bomb",
          "lazy dog bomb#English"
        ]
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "ellipsis"
      ]
    },
    {
      "glosses": [
        "Used other than figuratively or idiomatically: see lazy, dog."
      ],
      "links": [
        [
          "lazy",
          "lazy#English"
        ],
        [
          "dog",
          "dog#English"
        ]
      ]
    }
  ],
  "word": "lazy dog"
}