"rubber jungle" meaning in English

{
  "forms": [
    {
      "form": "rubber jungles",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
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      "args": {},
      "expansion": "rubber jungle (plural rubber jungles)",
      "name": "en-noun"
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  ],
  "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"
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          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Aviation",
          "orig": "en:Aviation",
          "parents": [
            "Aeronautics",
            "Transport",
            "Sciences",
            "All topics",
            "Fundamental"
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          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2006 May 15, Meryl Getline, “Ask the Captain: When oxygen masks mysteriously appear”, in USAToday.com, retrieved 2014-03-21",
          "text": "By the way, when all the masks are hanging out, it's sometimes referred to as the \"rubber jungle.\"",
          "type": "quotation"
        },
        {
          "ref": "2007 March 18, Jeff Bailey, “After service disruptions, airlines are saying they're sorry”, in New York Times, retrieved 2014-03-21",
          "text": "From the day before, an accidental deployment of oxygen masks—a rubber jungle, in airline-speak—was discussed.",
          "type": "quotation"
        },
        {
          "ref": "2013, Jim Lewis, Short Tales by a Tall Pilot, page 89",
          "text": "I looked back to see what was going on, and observed a rubber jungle of oxygen masks hanging from the overhead bins.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "In a commercial passenger airliner, the dense, forest-like profusion of suspended tubes, straps, bags, and masks which results when large numbers of oxygen masks are deployed."
      ],
      "id": "en-rubber_jungle-en-noun-smD0yL9D",
      "links": [
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          "aviation",
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        ],
        [
          "airliner",
          "airliner"
        ],
        [
          "profusion",
          "profusion"
        ],
        [
          "suspend",
          "suspend"
        ],
        [
          "oxygen mask",
          "oxygen mask"
        ],
        [
          "deploy",
          "deploy"
        ]
      ],
      "raw_glosses": [
        "(aviation, informal) In a commercial passenger airliner, the dense, forest-like profusion of suspended tubes, straps, bags, and masks which results when large numbers of oxygen masks are deployed."
      ],
      "tags": [
        "informal"
      ],
      "topics": [
        "aeronautics",
        "aerospace",
        "aviation",
        "business",
        "engineering",
        "natural-sciences",
        "physical-sciences"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "En-au-rubber jungle.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/1/1d/En-au-rubber_jungle.ogg/En-au-rubber_jungle.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/1/1d/En-au-rubber_jungle.ogg",
      "tags": [
        "Australia"
      ],
      "text": "Audio (AU)"
    }
  ],
  "word": "rubber jungle"
}

{
  "forms": [
    {
      "form": "rubber jungles",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "rubber jungle (plural rubber jungles)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English informal terms",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with audio links",
        "English terms with quotations",
        "en:Aviation"
      ],
      "examples": [
        {
          "ref": "2006 May 15, Meryl Getline, “Ask the Captain: When oxygen masks mysteriously appear”, in USAToday.com, retrieved 2014-03-21",
          "text": "By the way, when all the masks are hanging out, it's sometimes referred to as the \"rubber jungle.\"",
          "type": "quotation"
        },
        {
          "ref": "2007 March 18, Jeff Bailey, “After service disruptions, airlines are saying they're sorry”, in New York Times, retrieved 2014-03-21",
          "text": "From the day before, an accidental deployment of oxygen masks—a rubber jungle, in airline-speak—was discussed.",
          "type": "quotation"
        },
        {
          "ref": "2013, Jim Lewis, Short Tales by a Tall Pilot, page 89",
          "text": "I looked back to see what was going on, and observed a rubber jungle of oxygen masks hanging from the overhead bins.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "In a commercial passenger airliner, the dense, forest-like profusion of suspended tubes, straps, bags, and masks which results when large numbers of oxygen masks are deployed."
      ],
      "links": [
        [
          "aviation",
          "aviation"
        ],
        [
          "airliner",
          "airliner"
        ],
        [
          "profusion",
          "profusion"
        ],
        [
          "suspend",
          "suspend"
        ],
        [
          "oxygen mask",
          "oxygen mask"
        ],
        [
          "deploy",
          "deploy"
        ]
      ],
      "raw_glosses": [
        "(aviation, informal) In a commercial passenger airliner, the dense, forest-like profusion of suspended tubes, straps, bags, and masks which results when large numbers of oxygen masks are deployed."
      ],
      "tags": [
        "informal"
      ],
      "topics": [
        "aeronautics",
        "aerospace",
        "aviation",
        "business",
        "engineering",
        "natural-sciences",
        "physical-sciences"
      ]
    }
  ],
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      "audio": "En-au-rubber jungle.ogg",
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      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/1/1d/En-au-rubber_jungle.ogg",
      "tags": [
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      ],
      "text": "Audio (AU)"
    }
  ],
  "word": "rubber jungle"
}