"two fingers up" meaning in English

{
  "forms": [
    {
      "form": "two fingers up",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "two fingers up"
      },
      "expansion": "two fingers up (plural two fingers up)",
      "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"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2016 February 23, Robbie Collin, “Grimsby review: ' Sacha Baron Cohen's vital, venomous action movie'”, in The Daily Telegraph (London):",
          "text": "Grimsby doesn’t ever wound quite as devastatingly as Borat or Brüno, but it’s a vital, lavish, venomously profane two fingers up at Benefits Street pity porn and the social division it fosters.",
          "type": "quote"
        }
      ],
      "glosses": [
        "V sign (gesture of contempt)"
      ],
      "id": "en-two_fingers_up-en-noun-wdFlSf4W",
      "links": [
        [
          "V sign",
          "V sign"
        ]
      ]
    }
  ],
  "word": "two fingers up"
}

{
  "forms": [
    {
      "form": "two fingers up",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "two fingers up"
      },
      "expansion": "two fingers up (plural two fingers up)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with quotations",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "ref": "2016 February 23, Robbie Collin, “Grimsby review: ' Sacha Baron Cohen's vital, venomous action movie'”, in The Daily Telegraph (London):",
          "text": "Grimsby doesn’t ever wound quite as devastatingly as Borat or Brüno, but it’s a vital, lavish, venomously profane two fingers up at Benefits Street pity porn and the social division it fosters.",
          "type": "quote"
        }
      ],
      "glosses": [
        "V sign (gesture of contempt)"
      ],
      "links": [
        [
          "V sign",
          "V sign"
        ]
      ]
    }
  ],
  "word": "two fingers up"
}