"blind bit" meaning in English

{
  "head_templates": [
    {
      "args": {
        "1": "!"
      },
      "expansion": "blind bit (plural not attested)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "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": "English negative polarity items",
          "parents": [
            "Negative polarity items",
            "Terms by semantic function"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English nouns with unattested plurals",
          "parents": [
            "Nouns with unattested plurals",
            "Nouns",
            "Lemmas"
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          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with collocations",
          "parents": [
            "Terms with collocations",
            "Entry maintenance"
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          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "not to take a blind bit of notice",
          "type": "example"
        },
        {
          "text": "not to make a blind bit of difference",
          "type": "example"
        }
      ],
      "glosses": [
        "The slightest bit; any amount at all."
      ],
      "id": "en-blind_bit-en-noun-U~LZ2BPU",
      "raw_glosses": [
        "(UK, informal) The slightest bit; any amount at all."
      ],
      "tags": [
        "UK",
        "informal",
        "no-plural"
      ]
    }
  ],
  "word": "blind bit"
}

{
  "head_templates": [
    {
      "args": {
        "1": "!"
      },
      "expansion": "blind bit (plural not attested)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "British English",
        "English countable nouns",
        "English entries with incorrect language header",
        "English informal terms",
        "English lemmas",
        "English multiword terms",
        "English negative polarity items",
        "English nouns",
        "English nouns with unattested plurals",
        "English terms with collocations",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "text": "not to take a blind bit of notice",
          "type": "example"
        },
        {
          "text": "not to make a blind bit of difference",
          "type": "example"
        }
      ],
      "glosses": [
        "The slightest bit; any amount at all."
      ],
      "raw_glosses": [
        "(UK, informal) The slightest bit; any amount at all."
      ],
      "tags": [
        "UK",
        "informal",
        "no-plural"
      ]
    }
  ],
  "word": "blind bit"
}