"rubster" meaning in English

{
  "forms": [
    {
      "form": "rubsters",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "rubster (plural rubsters)",
      "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"
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          "source": "w"
        },
        {
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          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1693, John Dryden, “The Sixth Satire”, in Keith Walker, editor, The poetical works of John Dryden, OUP, published 1987, →ISBN, manuscript additions, page 348:",
          "text": "Provokes to flats some battered household whore, / And heaving up the rubster does adore",
          "type": "quote"
        }
      ],
      "glosses": [
        "Synonym of tribade"
      ],
      "id": "en-rubster-en-noun-5ETdDZ--",
      "links": [
        [
          "tribade",
          "tribade#English"
        ]
      ],
      "raw_glosses": [
        "(obsolete) Synonym of tribade"
      ],
      "synonyms": [
        {
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "tribade"
        }
      ],
      "tags": [
        "obsolete"
      ]
    }
  ],
  "word": "rubster"
}

{
  "forms": [
    {
      "form": "rubsters",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "rubster (plural rubsters)",
      "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 obsolete senses",
        "English terms with quotations",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "ref": "1693, John Dryden, “The Sixth Satire”, in Keith Walker, editor, The poetical works of John Dryden, OUP, published 1987, →ISBN, manuscript additions, page 348:",
          "text": "Provokes to flats some battered household whore, / And heaving up the rubster does adore",
          "type": "quote"
        }
      ],
      "glosses": [
        "Synonym of tribade"
      ],
      "links": [
        [
          "tribade",
          "tribade#English"
        ]
      ],
      "raw_glosses": [
        "(obsolete) Synonym of tribade"
      ],
      "synonyms": [
        {
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "tribade"
        }
      ],
      "tags": [
        "obsolete"
      ]
    }
  ],
  "word": "rubster"
}