"come to mention it" meaning in English

{
  "etymology_text": "An ellipsis of \"now that you come to mention it\".",
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "phrase"
      },
      "expansion": "come to mention it",
      "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": [
        {
          "text": "\"What do you think of the banking reforms?\" / \"Come to mention it, I've got to get to the bank before it closes today."
        },
        {
          "text": "\"Did you see that hat he was wearing?\" / \"Come to mention it, he always wears funny clothes.\""
        }
      ],
      "glosses": [
        "What you just said reminds me of something; Used to justify a change of subject or a kind of statement that needs some kind of license."
      ],
      "id": "en-come_to_mention_it-en-phrase-2zKVo1Ql",
      "raw_glosses": [
        "(idiomatic) What you just said reminds me of something; Used to justify a change of subject or a kind of statement that needs some kind of license."
      ],
      "synonyms": [
        {
          "word": "now you mention it"
        }
      ],
      "tags": [
        "idiomatic"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "en-au-come to mention it.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/2/2c/En-au-come_to_mention_it.ogg/En-au-come_to_mention_it.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/2/2c/En-au-come_to_mention_it.ogg",
      "tags": [
        "Australia"
      ],
      "text": "Audio (AU)"
    }
  ],
  "word": "come to mention it"
}

{
  "etymology_text": "An ellipsis of \"now that you come to mention it\".",
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "phrase"
      },
      "expansion": "come to mention it",
      "name": "head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "phrase",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English idioms",
        "English lemmas",
        "English multiword terms",
        "English phrases",
        "English terms with audio links"
      ],
      "examples": [
        {
          "text": "\"What do you think of the banking reforms?\" / \"Come to mention it, I've got to get to the bank before it closes today."
        },
        {
          "text": "\"Did you see that hat he was wearing?\" / \"Come to mention it, he always wears funny clothes.\""
        }
      ],
      "glosses": [
        "What you just said reminds me of something; Used to justify a change of subject or a kind of statement that needs some kind of license."
      ],
      "raw_glosses": [
        "(idiomatic) What you just said reminds me of something; Used to justify a change of subject or a kind of statement that needs some kind of license."
      ],
      "tags": [
        "idiomatic"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "en-au-come to mention it.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/2/2c/En-au-come_to_mention_it.ogg/En-au-come_to_mention_it.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/2/2c/En-au-come_to_mention_it.ogg",
      "tags": [
        "Australia"
      ],
      "text": "Audio (AU)"
    }
  ],
  "synonyms": [
    {
      "word": "now you mention it"
    }
  ],
  "word": "come to mention it"
}