"expository lump" meaning in English

{
  "forms": [
    {
      "form": "expository lumps",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "expository lump (plural expository lumps)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "langcode": "en",
          "name": "Narratology",
          "orig": "en:Narratology",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "A portion of a story that contains an excessive amount of exposition."
      ],
      "id": "en-expository_lump-en-noun-Lu-EdrxY",
      "links": [
        [
          "exposition",
          "exposition"
        ]
      ],
      "raw_glosses": [
        "(authorship, colloquial) A portion of a story that contains an excessive amount of exposition."
      ],
      "synonyms": [
        {
          "word": "info-dump"
        }
      ],
      "tags": [
        "colloquial"
      ],
      "topics": [
        "authorship",
        "broadcasting",
        "communications",
        "film",
        "journalism",
        "literature",
        "media",
        "publishing",
        "television",
        "writing"
      ]
    }
  ],
  "word": "expository lump"
}

{
  "forms": [
    {
      "form": "expository lumps",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "expository lump (plural expository lumps)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English colloquialisms",
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Narratology"
      ],
      "glosses": [
        "A portion of a story that contains an excessive amount of exposition."
      ],
      "links": [
        [
          "exposition",
          "exposition"
        ]
      ],
      "raw_glosses": [
        "(authorship, colloquial) A portion of a story that contains an excessive amount of exposition."
      ],
      "synonyms": [
        {
          "word": "info-dump"
        }
      ],
      "tags": [
        "colloquial"
      ],
      "topics": [
        "authorship",
        "broadcasting",
        "communications",
        "film",
        "journalism",
        "literature",
        "media",
        "publishing",
        "television",
        "writing"
      ]
    }
  ],
  "word": "expository lump"
}