"new jack" meaning in English

{
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "new jack (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "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": [
        {
          "ref": "2006, Billboard, volume 118, number 25, page 48:",
          "text": "The rise of rap and new jack and the proliferation of other urban music labels meant the glory days of PIR were effectively over.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Synonym of new jack swing"
      ],
      "id": "en-new_jack-en-noun-dpgT7r1P",
      "links": [
        [
          "new jack swing",
          "new jack swing#English"
        ]
      ],
      "synonyms": [
        {
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "new jack swing"
        }
      ],
      "tags": [
        "uncountable"
      ]
    }
  ],
  "word": "new jack"
}

{
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "new jack (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with quotations",
        "English uncountable nouns",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "ref": "2006, Billboard, volume 118, number 25, page 48:",
          "text": "The rise of rap and new jack and the proliferation of other urban music labels meant the glory days of PIR were effectively over.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Synonym of new jack swing"
      ],
      "links": [
        [
          "new jack swing",
          "new jack swing#English"
        ]
      ],
      "synonyms": [
        {
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "new jack swing"
        }
      ],
      "tags": [
        "uncountable"
      ]
    }
  ],
  "word": "new jack"
}