"by gum" meaning in English

{
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "by gum (not comparable)",
      "name": "en-adv"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adv",
  "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 entries with language name categories using raw markup",
          "parents": [
            "Entries with language name categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "name": "English minced oaths",
          "parents": [
            "Minced oaths",
            "Euphemisms",
            "Figures of speech",
            "Rhetoric",
            "Language",
            "Communication",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "New Zealand English",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1937, Rodgers and Hart (lyrics and music), “Johnny One Note”",
          "text": "Couldn't hear the brass / Couldn't hear the drum / He was in a class by himself, by gum!",
          "type": "quotation"
        }
      ],
      "glosses": [
        "by God"
      ],
      "id": "en-by_gum-en-adv-uwG1IBzS",
      "links": [
        [
          "minced oath",
          "minced oath"
        ],
        [
          "by God",
          "by God"
        ]
      ],
      "qualifier": "minced oath",
      "raw_glosses": [
        "(UK, New Zealand, minced oath) by God"
      ],
      "synonyms": [
        {
          "word": "wow"
        }
      ],
      "tags": [
        "New-Zealand",
        "UK",
        "not-comparable"
      ]
    }
  ],
  "word": "by gum"
}

{
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "by gum (not comparable)",
      "name": "en-adv"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        "British English",
        "English adverbs",
        "English entries with incorrect language header",
        "English entries with language name categories using raw markup",
        "English lemmas",
        "English minced oaths",
        "English multiword terms",
        "English prepositional phrases",
        "English terms with non-redundant non-automated sortkeys",
        "English terms with quotations",
        "English uncomparable adverbs",
        "New Zealand English"
      ],
      "examples": [
        {
          "ref": "1937, Rodgers and Hart (lyrics and music), “Johnny One Note”",
          "text": "Couldn't hear the brass / Couldn't hear the drum / He was in a class by himself, by gum!",
          "type": "quotation"
        }
      ],
      "glosses": [
        "by God"
      ],
      "links": [
        [
          "minced oath",
          "minced oath"
        ],
        [
          "by God",
          "by God"
        ]
      ],
      "qualifier": "minced oath",
      "raw_glosses": [
        "(UK, New Zealand, minced oath) by God"
      ],
      "tags": [
        "New-Zealand",
        "UK",
        "not-comparable"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "wow"
    }
  ],
  "word": "by gum"
}