"not do someone any favours" meaning in English

{
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "verb",
        "head": "not do someone any favours"
      },
      "expansion": "not do someone any favours",
      "name": "head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "alt_of": [
        {
          "word": "not do someone any favors"
        }
      ],
      "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 language name categories using raw markup",
          "parents": [
            "Entries with language name categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English negative polarity items",
          "parents": [
            "Negative polarity items",
            "Terms by semantic function"
          ],
          "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"
        }
      ],
      "examples": [
        {
          "ref": "2012, Michele Hanson, What the Grown-ups Were Doing: An odyssey through 1950s suburbia",
          "text": "Your mother's a very smart woman. She loves nice clothes. Has she seen this jumper? Has she? You're not doing yourself any favours.",
          "type": "quotation"
        },
        {
          "ref": "2014, Will Jordan, Betrayal, page 214",
          "text": "Anyway, her head was still killing her and the sound of Frost's tirade wasn't doing it any favours.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Alternative form of not do someone any favors"
      ],
      "id": "en-not_do_someone_any_favours-en-verb-49BduOa6",
      "links": [
        [
          "not do someone any favors",
          "not do someone any favors#English"
        ]
      ],
      "raw_glosses": [
        "(idiomatic) Alternative form of not do someone any favors"
      ],
      "tags": [
        "alt-of",
        "alternative",
        "idiomatic"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "En-au-not do someone any favours.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/e/e8/En-au-not_do_someone_any_favours.ogg/En-au-not_do_someone_any_favours.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/e/e8/En-au-not_do_someone_any_favours.ogg",
      "tags": [
        "Australia"
      ],
      "text": "Audio (AU)"
    }
  ],
  "word": "not do someone any favours"
}

{
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "verb",
        "head": "not do someone any favours"
      },
      "expansion": "not do someone any favours",
      "name": "head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "alt_of": [
        {
          "word": "not do someone any favors"
        }
      ],
      "categories": [
        "English entries with incorrect language header",
        "English entries with language name categories using raw markup",
        "English idioms",
        "English lemmas",
        "English multiword terms",
        "English negative polarity items",
        "English terms with audio links",
        "English terms with non-redundant non-automated sortkeys",
        "English terms with quotations",
        "English verbs"
      ],
      "examples": [
        {
          "ref": "2012, Michele Hanson, What the Grown-ups Were Doing: An odyssey through 1950s suburbia",
          "text": "Your mother's a very smart woman. She loves nice clothes. Has she seen this jumper? Has she? You're not doing yourself any favours.",
          "type": "quotation"
        },
        {
          "ref": "2014, Will Jordan, Betrayal, page 214",
          "text": "Anyway, her head was still killing her and the sound of Frost's tirade wasn't doing it any favours.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Alternative form of not do someone any favors"
      ],
      "links": [
        [
          "not do someone any favors",
          "not do someone any favors#English"
        ]
      ],
      "raw_glosses": [
        "(idiomatic) Alternative form of not do someone any favors"
      ],
      "tags": [
        "alt-of",
        "alternative",
        "idiomatic"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "En-au-not do someone any favours.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/e/e8/En-au-not_do_someone_any_favours.ogg/En-au-not_do_someone_any_favours.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/e/e8/En-au-not_do_someone_any_favours.ogg",
      "tags": [
        "Australia"
      ],
      "text": "Audio (AU)"
    }
  ],
  "word": "not do someone any favours"
}