"two thumbs up" meaning in English

{
  "etymology_text": "American film critics Roger Ebert and Gene Siskel co-hosted a movie review program, At the Movies. The two had different tastes, and often verbally sparred and traded humorous barbs. When both critics gave the film a thumbs up, it was assumed that the film was very good.",
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "noun",
        "head": "two thumbs up"
      },
      "expansion": "two thumbs up",
      "name": "head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [],
      "glosses": [
        "Strong approval."
      ],
      "id": "en-two_thumbs_up-en-noun-nR~enURe",
      "raw_glosses": [
        "(idiomatic) Strong approval."
      ],
      "related": [
        {
          "_dis1": "57 43",
          "word": "five-by-five"
        }
      ],
      "tags": [
        "idiomatic"
      ]
    },
    {
      "categories": [
        {
          "_dis": "15 85",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "22 78",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "14 86",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "examples": [
        {
          "ref": "1935 July 7, “GLOSSARY OF RADIO'S NEW TERMS COMPILED”, in Los Angeles Times:",
          "text": "Two thumbs up means everything on time and perfect.",
          "type": "quote"
        },
        {
          "ref": "1963 October 18, “Three More Negroes Register To Vote In Louisiana Town”, in Toledo Blade:",
          "text": "As he walked out of the court house, he showed two thumbs up and reached in his pocket to display his registration slip to some 30 other Negroes",
          "type": "quote"
        },
        {
          "text": "When shown the blueprint for the new building, I gave my two thumbs up to show my approval"
        }
      ],
      "glosses": [
        "A hand gesture indicating strong approval."
      ],
      "id": "en-two_thumbs_up-en-noun-6qblP82G",
      "links": [
        [
          "gesture",
          "gesture"
        ],
        [
          "approval",
          "approval"
        ]
      ],
      "raw_glosses": [
        "(dated) A hand gesture indicating strong approval."
      ],
      "tags": [
        "dated"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "En-au-two thumbs up.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/e/e4/En-au-two_thumbs_up.ogg/En-au-two_thumbs_up.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/e/e4/En-au-two_thumbs_up.ogg"
    }
  ],
  "word": "two thumbs up"
}

{
  "categories": [
    "English entries with incorrect language header",
    "English lemmas",
    "English multiword terms",
    "English nouns",
    "Pages with 1 entry",
    "Pages with entries"
  ],
  "etymology_text": "American film critics Roger Ebert and Gene Siskel co-hosted a movie review program, At the Movies. The two had different tastes, and often verbally sparred and traded humorous barbs. When both critics gave the film a thumbs up, it was assumed that the film was very good.",
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "noun",
        "head": "two thumbs up"
      },
      "expansion": "two thumbs up",
      "name": "head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "five-by-five"
    }
  ],
  "senses": [
    {
      "categories": [
        "English idioms"
      ],
      "glosses": [
        "Strong approval."
      ],
      "raw_glosses": [
        "(idiomatic) Strong approval."
      ],
      "tags": [
        "idiomatic"
      ]
    },
    {
      "categories": [
        "English dated terms",
        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "1935 July 7, “GLOSSARY OF RADIO'S NEW TERMS COMPILED”, in Los Angeles Times:",
          "text": "Two thumbs up means everything on time and perfect.",
          "type": "quote"
        },
        {
          "ref": "1963 October 18, “Three More Negroes Register To Vote In Louisiana Town”, in Toledo Blade:",
          "text": "As he walked out of the court house, he showed two thumbs up and reached in his pocket to display his registration slip to some 30 other Negroes",
          "type": "quote"
        },
        {
          "text": "When shown the blueprint for the new building, I gave my two thumbs up to show my approval"
        }
      ],
      "glosses": [
        "A hand gesture indicating strong approval."
      ],
      "links": [
        [
          "gesture",
          "gesture"
        ],
        [
          "approval",
          "approval"
        ]
      ],
      "raw_glosses": [
        "(dated) A hand gesture indicating strong approval."
      ],
      "tags": [
        "dated"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "En-au-two thumbs up.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/e/e4/En-au-two_thumbs_up.ogg/En-au-two_thumbs_up.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/e/e4/En-au-two_thumbs_up.ogg"
    }
  ],
  "word": "two thumbs up"
}