"coffin nail" meaning in English

{
  "etymology_text": "In reference to the deadly health effects of smoking.",
  "forms": [
    {
      "form": "coffin nails",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "coffin nail (plural coffin nails)",
      "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": "English entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Smoking",
          "orig": "en:Smoking",
          "parents": [
            "Human behaviour",
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A cigarette."
      ],
      "id": "en-coffin_nail-en-noun-63L~7XNP",
      "links": [
        [
          "cigarette",
          "cigarette"
        ]
      ],
      "raw_glosses": [
        "(slang) A cigarette."
      ],
      "related": [
        {
          "word": "another nail in one's coffin"
        },
        {
          "word": "final nail in the coffin"
        }
      ],
      "synonyms": [
        {
          "word": "cancer stick"
        }
      ],
      "tags": [
        "slang"
      ],
      "translations": [
        {
          "code": "da",
          "lang": "Danish",
          "sense": "slang: cigarette",
          "tags": [
            "neuter"
          ],
          "word": "ligkistesøm"
        },
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "slang: cigarette",
          "word": "ruumisarkunnaula"
        }
      ]
    }
  ],
  "sounds": [
    {
      "audio": "En-au-coffin nail.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/6/68/En-au-coffin_nail.ogg/En-au-coffin_nail.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/6/68/En-au-coffin_nail.ogg",
      "tags": [
        "Australia"
      ],
      "text": "Audio (AU)"
    }
  ],
  "word": "coffin nail"
}

{
  "etymology_text": "In reference to the deadly health effects of smoking.",
  "forms": [
    {
      "form": "coffin nails",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "coffin nail (plural coffin nails)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "another nail in one's coffin"
    },
    {
      "word": "final nail in the coffin"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with topic categories using raw markup",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English slang",
        "English terms with audio links",
        "English terms with non-redundant non-automated sortkeys",
        "Requests for review of German translations",
        "en:Smoking"
      ],
      "glosses": [
        "A cigarette."
      ],
      "links": [
        [
          "cigarette",
          "cigarette"
        ]
      ],
      "raw_glosses": [
        "(slang) A cigarette."
      ],
      "synonyms": [
        {
          "word": "cancer stick"
        }
      ],
      "tags": [
        "slang"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "En-au-coffin nail.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/6/68/En-au-coffin_nail.ogg/En-au-coffin_nail.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/6/68/En-au-coffin_nail.ogg",
      "tags": [
        "Australia"
      ],
      "text": "Audio (AU)"
    }
  ],
  "translations": [
    {
      "code": "da",
      "lang": "Danish",
      "sense": "slang: cigarette",
      "tags": [
        "neuter"
      ],
      "word": "ligkistesøm"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "slang: cigarette",
      "word": "ruumisarkunnaula"
    }
  ],
  "word": "coffin nail"
}