"or it didn't happen" meaning in English

{
  "etymology_text": "Derived from pics or it didn't happen, replacing pics with something else that is demanded as proof like links or video.",
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "phrase"
      },
      "expansion": "or it didn't happen",
      "name": "head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "phrase",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Internet",
          "orig": "en:Internet",
          "parents": [
            "Computing",
            "Networking",
            "Technology",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2014, Jeff Carlson, iPad and iPhone Video: Film, Edit, and Share the Apple Way, Peachpit Press, page 145",
          "text": "To paraphrase a popular Internet meme, share your movie or it didn't happen.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Unless one can provide the proof that one is requesting, that person has no credibility in the matter."
      ],
      "id": "en-or_it_didn't_happen-en-phrase-M2jtfuwo",
      "links": [
        [
          "Internet",
          "Internet"
        ],
        [
          "humorous",
          "humorous"
        ]
      ],
      "raw_glosses": [
        "(Internet, humorous) Unless one can provide the proof that one is requesting, that person has no credibility in the matter."
      ],
      "tags": [
        "Internet",
        "humorous"
      ]
    }
  ],
  "word": "or it didn't happen"
}

{
  "etymology_text": "Derived from pics or it didn't happen, replacing pics with something else that is demanded as proof like links or video.",
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "phrase"
      },
      "expansion": "or it didn't happen",
      "name": "head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "phrase",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English humorous terms",
        "English lemmas",
        "English multiword terms",
        "English phrases",
        "English terms with quotations",
        "en:Internet"
      ],
      "examples": [
        {
          "ref": "2014, Jeff Carlson, iPad and iPhone Video: Film, Edit, and Share the Apple Way, Peachpit Press, page 145",
          "text": "To paraphrase a popular Internet meme, share your movie or it didn't happen.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Unless one can provide the proof that one is requesting, that person has no credibility in the matter."
      ],
      "links": [
        [
          "Internet",
          "Internet"
        ],
        [
          "humorous",
          "humorous"
        ]
      ],
      "raw_glosses": [
        "(Internet, humorous) Unless one can provide the proof that one is requesting, that person has no credibility in the matter."
      ],
      "tags": [
        "Internet",
        "humorous"
      ]
    }
  ],
  "word": "or it didn't happen"
}