"H2G2" meaning in English

{
  "etymology_text": "Form of the initialism HHGG.",
  "head_templates": [
    {
      "args": {},
      "expansion": "H2G2",
      "name": "en-proper noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "British fiction",
          "orig": "en:British fiction",
          "parents": [
            "Fiction",
            "Artistic works",
            "Art",
            "Culture",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Science fiction",
          "orig": "en:Science fiction",
          "parents": [
            "Fiction",
            "Speculative fiction",
            "Artistic works",
            "Genres",
            "Art",
            "Entertainment",
            "Culture",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "The Hitchhiker's Guide to the Galaxy, a comedy science fiction series by Douglas Adams."
      ],
      "id": "en-H2G2-en-name-JmrkP4v6",
      "links": [
        [
          "fandom",
          "fandom"
        ],
        [
          "slang",
          "slang"
        ],
        [
          "comedy",
          "comedy"
        ],
        [
          "science fiction",
          "science fiction"
        ]
      ],
      "raw_glosses": [
        "(fandom slang) The Hitchhiker's Guide to the Galaxy, a comedy science fiction series by Douglas Adams."
      ],
      "tags": [
        "slang"
      ],
      "topics": [
        "lifestyle"
      ]
    }
  ],
  "word": "H2G2"
}

{
  "etymology_text": "Form of the initialism HHGG.",
  "head_templates": [
    {
      "args": {},
      "expansion": "H2G2",
      "name": "en-proper noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English fandom slang",
        "English lemmas",
        "English proper nouns",
        "English terms spelled with numbers",
        "English uncountable nouns",
        "English words without vowels",
        "Pages with 1 entry",
        "Pages with entries",
        "en:British fiction",
        "en:Science fiction"
      ],
      "glosses": [
        "The Hitchhiker's Guide to the Galaxy, a comedy science fiction series by Douglas Adams."
      ],
      "links": [
        [
          "fandom",
          "fandom"
        ],
        [
          "slang",
          "slang"
        ],
        [
          "comedy",
          "comedy"
        ],
        [
          "science fiction",
          "science fiction"
        ]
      ],
      "raw_glosses": [
        "(fandom slang) The Hitchhiker's Guide to the Galaxy, a comedy science fiction series by Douglas Adams."
      ],
      "tags": [
        "slang"
      ],
      "topics": [
        "lifestyle"
      ]
    }
  ],
  "word": "H2G2"
}