"nail Jell-O to a tree" meaning in English

{
  "forms": [
    {
      "form": "nails Jell-O to a tree",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "nailing Jell-O to a tree",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "nailed Jell-O to a tree",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "nailed Jell-O to a tree",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "*"
      },
      "expansion": "nail Jell-O to a tree (third-person singular simple present nails Jell-O to a tree, present participle nailing Jell-O to a tree, simple past and past participle nailed Jell-O to a tree)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "American English",
          "parents": [],
          "source": "w"
        },
        {
          "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": [
        {
          "text": "They are asking us to nail Jell-O to a tree if they insist on having everything done in three days.",
          "type": "example"
        }
      ],
      "glosses": [
        "To do something that is impossible or very difficult, with connotations of pointlessness."
      ],
      "id": "en-nail_Jell-O_to_a_tree-en-verb-UWCCUBM3",
      "links": [
        [
          "impossible",
          "impossible"
        ],
        [
          "difficult",
          "difficult"
        ],
        [
          "pointless",
          "pointless"
        ]
      ],
      "raw_glosses": [
        "(US, slang, rare) To do something that is impossible or very difficult, with connotations of pointlessness."
      ],
      "related": [
        {
          "word": "difficult"
        }
      ],
      "synonyms": [
        {
          "word": "nail Jell-O to a wall"
        },
        {
          "word": "nail jelly to a tree"
        },
        {
          "word": "nail jelly to a wall"
        }
      ],
      "tags": [
        "US",
        "rare",
        "slang"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "En-au-nail Jell-O to a tree.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/9/9b/En-au-nail_Jell-O_to_a_tree.ogg/En-au-nail_Jell-O_to_a_tree.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/9/9b/En-au-nail_Jell-O_to_a_tree.ogg"
    }
  ],
  "word": "nail Jell-O to a tree"
}

{
  "forms": [
    {
      "form": "nails Jell-O to a tree",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "nailing Jell-O to a tree",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "nailed Jell-O to a tree",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "nailed Jell-O to a tree",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "*"
      },
      "expansion": "nail Jell-O to a tree (third-person singular simple present nails Jell-O to a tree, present participle nailing Jell-O to a tree, simple past and past participle nailed Jell-O to a tree)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "related": [
    {
      "word": "difficult"
    }
  ],
  "senses": [
    {
      "categories": [
        "American English",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English slang",
        "English terms with rare senses",
        "English terms with usage examples",
        "English verbs",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "text": "They are asking us to nail Jell-O to a tree if they insist on having everything done in three days.",
          "type": "example"
        }
      ],
      "glosses": [
        "To do something that is impossible or very difficult, with connotations of pointlessness."
      ],
      "links": [
        [
          "impossible",
          "impossible"
        ],
        [
          "difficult",
          "difficult"
        ],
        [
          "pointless",
          "pointless"
        ]
      ],
      "raw_glosses": [
        "(US, slang, rare) To do something that is impossible or very difficult, with connotations of pointlessness."
      ],
      "tags": [
        "US",
        "rare",
        "slang"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "En-au-nail Jell-O to a tree.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/9/9b/En-au-nail_Jell-O_to_a_tree.ogg/En-au-nail_Jell-O_to_a_tree.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/9/9b/En-au-nail_Jell-O_to_a_tree.ogg"
    }
  ],
  "synonyms": [
    {
      "word": "nail Jell-O to a wall"
    },
    {
      "word": "nail jelly to a tree"
    },
    {
      "word": "nail jelly to a wall"
    }
  ],
  "word": "nail Jell-O to a tree"
}