"hindside" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "hind",
        "3": "side"
      },
      "expansion": "hind + side",
      "name": "compound"
    }
  ],
  "etymology_text": "hind + side",
  "forms": [
    {
      "form": "hindsides",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "hindside (plural hindsides)",
      "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"
        }
      ],
      "examples": [
        {
          "ref": "1883, Mark Twain, Life on the Mississippi",
          "text": "we'll see the hind-side of every island between New Orleans and Cairo",
          "type": "quotation"
        }
      ],
      "glosses": [
        "backside"
      ],
      "id": "en-hindside-en-noun-KAAwtBRm",
      "links": [
        [
          "backside",
          "backside"
        ]
      ],
      "raw_glosses": [
        "(dialect) backside"
      ],
      "tags": [
        "dialectal"
      ]
    }
  ],
  "word": "hindside"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "hind",
        "3": "side"
      },
      "expansion": "hind + side",
      "name": "compound"
    }
  ],
  "etymology_text": "hind + side",
  "forms": [
    {
      "form": "hindsides",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "hindside (plural hindsides)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English compound terms",
        "English countable nouns",
        "English dialectal terms",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English terms with quotations",
        "Quotation templates to be cleaned"
      ],
      "examples": [
        {
          "ref": "1883, Mark Twain, Life on the Mississippi",
          "text": "we'll see the hind-side of every island between New Orleans and Cairo",
          "type": "quotation"
        }
      ],
      "glosses": [
        "backside"
      ],
      "links": [
        [
          "backside",
          "backside"
        ]
      ],
      "raw_glosses": [
        "(dialect) backside"
      ],
      "tags": [
        "dialectal"
      ]
    }
  ],
  "word": "hindside"
}