"ISTG" meaning in English

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      "expansion": "ISTG",
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  "lang": "English",
  "lang_code": "en",
  "pos": "phrase",
  "senses": [
    {
      "alt_of": [
        {
          "word": "I swear to God"
        }
      ],
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      "examples": [
        {
          "text": "Alternative form: istg"
        },
        {
          "ref": "2003 July 6, J.J. Chambers, “Re: Becker/Chambers -- the plot thickens”, in rec.arts.drwho (Usenet):",
          "text": "OMG, for a second I thought you were Cameron Mason! ISTG you just did an impeccable impression of the way he came across at one point when he was attacking me. (No offence intended to Cameron here, but he did sound that way.)",
          "type": "quote"
        },
        {
          "ref": "2017, Bryan Hope, The Rhino's Horn, Bloomington, IN: AuthorHouse, →ISBN, page unknown:",
          "text": "“ISTG [I swear to God],” she said, standing naked on one foot, the other bent and crossed above her knee, her fingers tapping methodically in the air a few inches from her toes as she was presumably fixing a crease in her Suit in the RW [Real World].",
          "type": "quote"
        }
      ],
      "glosses": [
        "Initialism of I swear to God."
      ],
      "id": "en-ISTG-en-phrase-I19s2IzL",
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          "I",
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        ],
        [
          "swear to God",
          "swear to God#English"
        ]
      ],
      "raw_glosses": [
        "(Internet slang) Initialism of I swear to God."
      ],
      "tags": [
        "Internet",
        "abbreviation",
        "alt-of",
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  ],
  "word": "ISTG"
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  "lang": "English",
  "lang_code": "en",
  "pos": "phrase",
  "senses": [
    {
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        {
          "word": "I swear to God"
        }
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      "examples": [
        {
          "text": "Alternative form: istg"
        },
        {
          "ref": "2003 July 6, J.J. Chambers, “Re: Becker/Chambers -- the plot thickens”, in rec.arts.drwho (Usenet):",
          "text": "OMG, for a second I thought you were Cameron Mason! ISTG you just did an impeccable impression of the way he came across at one point when he was attacking me. (No offence intended to Cameron here, but he did sound that way.)",
          "type": "quote"
        },
        {
          "ref": "2017, Bryan Hope, The Rhino's Horn, Bloomington, IN: AuthorHouse, →ISBN, page unknown:",
          "text": "“ISTG [I swear to God],” she said, standing naked on one foot, the other bent and crossed above her knee, her fingers tapping methodically in the air a few inches from her toes as she was presumably fixing a crease in her Suit in the RW [Real World].",
          "type": "quote"
        }
      ],
      "glosses": [
        "Initialism of I swear to God."
      ],
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          "Internet",
          "Internet"
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          "I",
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          "swear to God",
          "swear to God#English"
        ]
      ],
      "raw_glosses": [
        "(Internet slang) Initialism of I swear to God."
      ],
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        "Internet",
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        "initialism"
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  ],
  "word": "ISTG"
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