"jooker" meaning in English

{
  "forms": [
    {
      "form": "jookers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "jooker (plural jookers)",
      "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": "Multicultural London English",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Knives",
          "orig": "en:Knives",
          "parents": [
            "Tools",
            "Technology",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2014, Section Boys (lyrics and music), “SS Or S4P”",
          "text": "King Kane with a jooker he's been stabby.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "knife"
      ],
      "id": "en-jooker-en-noun-PU0QHNfq",
      "links": [
        [
          "knife",
          "knife"
        ]
      ],
      "raw_glosses": [
        "(MLE) knife"
      ],
      "tags": [
        "Multicultural-London-English"
      ]
    }
  ],
  "word": "jooker"
}

{
  "forms": [
    {
      "form": "jookers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "jooker (plural jookers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English terms with quotations",
        "Multicultural London English",
        "en:Knives"
      ],
      "examples": [
        {
          "ref": "2014, Section Boys (lyrics and music), “SS Or S4P”",
          "text": "King Kane with a jooker he's been stabby.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "knife"
      ],
      "links": [
        [
          "knife",
          "knife"
        ]
      ],
      "raw_glosses": [
        "(MLE) knife"
      ],
      "tags": [
        "Multicultural-London-English"
      ]
    }
  ],
  "word": "jooker"
}