"as they say" meaning in English

{
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "phrase"
      },
      "expansion": "as they say",
      "name": "head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "phrase",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English discourse markers",
          "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": "English subordinate clauses",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Entries with translation boxes",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Finnish translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with French translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with German translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Polish translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Russian translations",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "A vague invocation of popular convention when introducing a phrase or expression, which may be accompanied by attribution to a source or locale in which the phrase or expression is used."
      ],
      "id": "en-as_they_say-en-phrase-41FlSzoo",
      "related": [
        {
          "word": "you know what they say"
        },
        {
          "word": "as the saying goes"
        }
      ],
      "translations": [
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "Translations",
          "word": "kuten sanotaan"
        },
        {
          "code": "fr",
          "lang": "French",
          "sense": "Translations",
          "word": "comme on dit"
        },
        {
          "code": "de",
          "lang": "German",
          "sense": "Translations",
          "word": "wie man so schön sagt"
        },
        {
          "code": "pl",
          "lang": "Polish",
          "sense": "Translations",
          "word": "jak to mówią"
        },
        {
          "code": "ru",
          "lang": "Russian",
          "roman": "kak govorítsja",
          "sense": "Translations",
          "word": "как говори́тся"
        }
      ]
    }
  ],
  "word": "as they say"
}

{
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "phrase"
      },
      "expansion": "as they say",
      "name": "head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "phrase",
  "related": [
    {
      "word": "you know what they say"
    },
    {
      "word": "as the saying goes"
    }
  ],
  "senses": [
    {
      "categories": [
        "English discourse markers",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English phrases",
        "English subordinate clauses",
        "Entries with translation boxes",
        "Pages with 1 entry",
        "Pages with entries",
        "Terms with Finnish translations",
        "Terms with French translations",
        "Terms with German translations",
        "Terms with Polish translations",
        "Terms with Russian translations",
        "Translation table header lacks gloss"
      ],
      "glosses": [
        "A vague invocation of popular convention when introducing a phrase or expression, which may be accompanied by attribution to a source or locale in which the phrase or expression is used."
      ]
    }
  ],
  "translations": [
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "Translations",
      "word": "kuten sanotaan"
    },
    {
      "code": "fr",
      "lang": "French",
      "sense": "Translations",
      "word": "comme on dit"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "Translations",
      "word": "wie man so schön sagt"
    },
    {
      "code": "pl",
      "lang": "Polish",
      "sense": "Translations",
      "word": "jak to mówią"
    },
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "kak govorítsja",
      "sense": "Translations",
      "word": "как говори́тся"
    }
  ],
  "word": "as they say"
}