"you know something" meaning in All languages combined

{
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "phrase"
      },
      "expansion": "you know something",
      "name": "head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "phrase",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2015, Joseph I. Rosselli, Uncle Champion I: “The World Beyond the Fence”",
          "text": "Chris asked, “Sara, you know something. I never stopped to ask you the day of your birthday. When is your birthday?”",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Synonym of you know what (“used, often as a question, to get someone's attention before announcing something”)"
      ],
      "id": "en-you_know_something-en-phrase-BeJtjfrC",
      "links": [
        [
          "you know what",
          "you know what#English"
        ]
      ],
      "synonyms": [
        {
          "extra": "used, often as a question, to get someone's attention before announcing something",
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "you know what"
        }
      ]
    }
  ],
  "word": "you know something"
}

{
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "phrase"
      },
      "expansion": "you know something",
      "name": "head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "phrase",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English phrases",
        "English terms with quotations",
        "Quotation templates to be cleaned"
      ],
      "examples": [
        {
          "ref": "2015, Joseph I. Rosselli, Uncle Champion I: “The World Beyond the Fence”",
          "text": "Chris asked, “Sara, you know something. I never stopped to ask you the day of your birthday. When is your birthday?”",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Synonym of you know what (“used, often as a question, to get someone's attention before announcing something”)"
      ],
      "links": [
        [
          "you know what",
          "you know what#English"
        ]
      ],
      "synonyms": [
        {
          "extra": "used, often as a question, to get someone's attention before announcing something",
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "you know what"
        }
      ]
    }
  ],
  "word": "you know something"
}