"yah boo sucks" meaning in English

{
  "forms": [
    {
      "form": "ya boo sucks",
      "tags": [
        "alternative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "yah boo sucks",
      "name": "en-interj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "intj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "British English",
          "parents": [],
          "source": "w"
        },
        {
          "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": "1971, Dr Martin Sherwood, New Scientist and Science Journal:",
          "text": "Since this is the world of the comics, it seems likely that scientific evidence of the true nature of the phenomenon will not end the debate. If it does, then Yah, boo, sucks!",
          "type": "quote"
        },
        {
          "ref": "1991, Punch, volume 300:",
          "text": "These things should be in pockets the world over, saying: 'Made in Britain, so yah-boo-sucks'.",
          "type": "quote"
        },
        {
          "ref": "2004, Humphrey Carpenter, Mr Majeika and the Haunted Hotel:",
          "text": "'How do you know?' said the pretend Hamish. 'Nobody can tell the difference. Yah boo sucks!'",
          "type": "quote"
        }
      ],
      "glosses": [
        "A childish expression of derision or scorn."
      ],
      "id": "en-yah_boo_sucks-en-intj-Q1tfhv6a",
      "links": [
        [
          "childish",
          "childish"
        ],
        [
          "derision",
          "derision"
        ],
        [
          "scorn",
          "scorn"
        ]
      ],
      "raw_glosses": [
        "(British) A childish expression of derision or scorn."
      ],
      "synonyms": [
        {
          "word": "yah boo"
        }
      ],
      "tags": [
        "British"
      ]
    }
  ],
  "word": "yah boo sucks"
}

{
  "forms": [
    {
      "form": "ya boo sucks",
      "tags": [
        "alternative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "yah boo sucks",
      "name": "en-interj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "intj",
  "senses": [
    {
      "categories": [
        "British English",
        "English entries with incorrect language header",
        "English interjections",
        "English lemmas",
        "English multiword terms",
        "English terms with quotations",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "ref": "1971, Dr Martin Sherwood, New Scientist and Science Journal:",
          "text": "Since this is the world of the comics, it seems likely that scientific evidence of the true nature of the phenomenon will not end the debate. If it does, then Yah, boo, sucks!",
          "type": "quote"
        },
        {
          "ref": "1991, Punch, volume 300:",
          "text": "These things should be in pockets the world over, saying: 'Made in Britain, so yah-boo-sucks'.",
          "type": "quote"
        },
        {
          "ref": "2004, Humphrey Carpenter, Mr Majeika and the Haunted Hotel:",
          "text": "'How do you know?' said the pretend Hamish. 'Nobody can tell the difference. Yah boo sucks!'",
          "type": "quote"
        }
      ],
      "glosses": [
        "A childish expression of derision or scorn."
      ],
      "links": [
        [
          "childish",
          "childish"
        ],
        [
          "derision",
          "derision"
        ],
        [
          "scorn",
          "scorn"
        ]
      ],
      "raw_glosses": [
        "(British) A childish expression of derision or scorn."
      ],
      "tags": [
        "British"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "yah boo"
    }
  ],
  "word": "yah boo sucks"
}