"damn all" meaning in English

{
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "pronoun"
      },
      "expansion": "damn all",
      "name": "head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "pron",
  "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 pronouns",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1958, Anthony Burgess, The Enemy in the Blanket (The Malayan Trilogy), published 1972, page 298",
          "text": "\"The rice ration's down to nearly damn-all in the kampongs, but we keep finding dumps of grub in the forest.\"",
          "type": "quotation"
        },
        {
          "ref": "1976, L. P. Davies, Possession, The Crime Club, page 112",
          "text": "And that's just to let you see we don't spend all our time sitting round on our arses doing damn all.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Nothing (not any thing: no thing)."
      ],
      "id": "en-damn_all-en-pron-TXJ17fFd",
      "links": [
        [
          "Nothing",
          "nothing#English"
        ]
      ],
      "raw_glosses": [
        "(informal, vulgar) Nothing (not any thing: no thing)."
      ],
      "tags": [
        "informal",
        "vulgar"
      ]
    }
  ],
  "word": "damn all"
}

{
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "pronoun"
      },
      "expansion": "damn all",
      "name": "head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "pron",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English informal terms",
        "English lemmas",
        "English multiword terms",
        "English pronouns",
        "English terms with quotations",
        "English vulgarities"
      ],
      "examples": [
        {
          "ref": "1958, Anthony Burgess, The Enemy in the Blanket (The Malayan Trilogy), published 1972, page 298",
          "text": "\"The rice ration's down to nearly damn-all in the kampongs, but we keep finding dumps of grub in the forest.\"",
          "type": "quotation"
        },
        {
          "ref": "1976, L. P. Davies, Possession, The Crime Club, page 112",
          "text": "And that's just to let you see we don't spend all our time sitting round on our arses doing damn all.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Nothing (not any thing: no thing)."
      ],
      "links": [
        [
          "Nothing",
          "nothing#English"
        ]
      ],
      "raw_glosses": [
        "(informal, vulgar) Nothing (not any thing: no thing)."
      ],
      "tags": [
        "informal",
        "vulgar"
      ]
    }
  ],
  "word": "damn all"
}