"oh God" meaning in English

{
  "head_templates": [
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      "args": {},
      "expansion": "oh God",
      "name": "en-interj"
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  "lang": "English",
  "lang_code": "en",
  "pos": "intj",
  "senses": [
    {
      "alt_of": [
        {
          "word": "oh my God"
        }
      ],
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          "kind": "other",
          "name": "English entries with incorrect language header",
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          "source": "w"
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          "source": "w"
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          "parents": [],
          "source": "w"
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      "examples": [
        {
          "ref": "2008 November 21, Graham Linehan, The IT Crowd, Season 3, Episode 1",
          "text": "Roy: The work was fiiine. There was nothing wrong with the work. But they caught him... He pissed in the sink.\nJen: Oh. Oh!\nRoy: Yeah...\nJen: Which sink?\nRoy: All the sinks. Yeah, he basically went on a pee parade around the house.\nJen: Oh, God, I have to fire him."
        },
        {
          "ref": "1962, Ray Bradbury, Something Wicked This Way Comes:",
          "text": "Oh God, midnight’s not bad, you wake and go back to sleep, one or two’s not bad, you toss but sleep again.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Alternative form of oh my God"
      ],
      "id": "en-oh_God-en-intj-gVmOqSMs",
      "links": [
        [
          "oh my God",
          "oh my God#English"
        ]
      ],
      "synonyms": [
        {
          "word": "oh, God"
        }
      ],
      "tags": [
        "alt-of",
        "alternative"
      ]
    }
  ],
  "word": "oh God"
}

{
  "head_templates": [
    {
      "args": {},
      "expansion": "oh God",
      "name": "en-interj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "intj",
  "senses": [
    {
      "alt_of": [
        {
          "word": "oh my God"
        }
      ],
      "categories": [
        "English entries with incorrect language header",
        "English interjections",
        "English lemmas",
        "English multiword terms",
        "English terms with quotations",
        "Pages with 1 entry",
        "Pages with entries"
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      "examples": [
        {
          "ref": "2008 November 21, Graham Linehan, The IT Crowd, Season 3, Episode 1",
          "text": "Roy: The work was fiiine. There was nothing wrong with the work. But they caught him... He pissed in the sink.\nJen: Oh. Oh!\nRoy: Yeah...\nJen: Which sink?\nRoy: All the sinks. Yeah, he basically went on a pee parade around the house.\nJen: Oh, God, I have to fire him."
        },
        {
          "ref": "1962, Ray Bradbury, Something Wicked This Way Comes:",
          "text": "Oh God, midnight’s not bad, you wake and go back to sleep, one or two’s not bad, you toss but sleep again.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Alternative form of oh my God"
      ],
      "links": [
        [
          "oh my God",
          "oh my God#English"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "oh, God"
    }
  ],
  "word": "oh God"
}