"cancelbombing" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "cancel",
        "3": "bombing"
      },
      "expansion": "cancel + bombing",
      "name": "af"
    }
  ],
  "etymology_text": "From cancel + bombing.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "cancelbombing (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "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": "Internet",
          "orig": "en:Internet",
          "parents": [
            "Computing",
            "Networking",
            "Technology",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Usenet",
          "orig": "en:Usenet",
          "parents": [
            "Internet",
            "Computing",
            "Networking",
            "Technology",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1998 October 26, Andrew Gierth, “Re: A way to deal with Supersedes: (was Re; Cat bathing)”, in news.software.nntp (Usenet):",
          "text": "NNTP-Posting-Host is the least forgeable and most reliable when dealing with spam (though somewhat less so when dealing with flooding, cancelbombing, and other more advanced forms of abuse).",
          "type": "quote"
        }
      ],
      "glosses": [
        "A malicious technique whereby a large number of cancel messages are sent out to one or more Usenet newsgroups."
      ],
      "id": "en-cancelbombing-en-noun-VB5DzmsH",
      "links": [
        [
          "Internet",
          "Internet"
        ],
        [
          "malicious",
          "malicious"
        ],
        [
          "technique",
          "technique"
        ],
        [
          "large",
          "large"
        ],
        [
          "number",
          "number"
        ],
        [
          "sent out",
          "send out"
        ],
        [
          "Usenet",
          "Usenet"
        ],
        [
          "newsgroup",
          "newsgroup"
        ]
      ],
      "raw_glosses": [
        "(Internet) A malicious technique whereby a large number of cancel messages are sent out to one or more Usenet newsgroups."
      ],
      "related": [
        {
          "word": "cancelbomb"
        },
        {
          "word": "cancelbomber"
        },
        {
          "word": "cancelbot"
        }
      ],
      "tags": [
        "Internet",
        "uncountable"
      ]
    }
  ],
  "word": "cancelbombing"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "cancel",
        "3": "bombing"
      },
      "expansion": "cancel + bombing",
      "name": "af"
    }
  ],
  "etymology_text": "From cancel + bombing.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "cancelbombing (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "cancelbomb"
    },
    {
      "word": "cancelbomber"
    },
    {
      "word": "cancelbot"
    }
  ],
  "senses": [
    {
      "categories": [
        "English compound terms",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English terms with quotations",
        "English uncountable nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Internet",
        "en:Usenet"
      ],
      "examples": [
        {
          "ref": "1998 October 26, Andrew Gierth, “Re: A way to deal with Supersedes: (was Re; Cat bathing)”, in news.software.nntp (Usenet):",
          "text": "NNTP-Posting-Host is the least forgeable and most reliable when dealing with spam (though somewhat less so when dealing with flooding, cancelbombing, and other more advanced forms of abuse).",
          "type": "quote"
        }
      ],
      "glosses": [
        "A malicious technique whereby a large number of cancel messages are sent out to one or more Usenet newsgroups."
      ],
      "links": [
        [
          "Internet",
          "Internet"
        ],
        [
          "malicious",
          "malicious"
        ],
        [
          "technique",
          "technique"
        ],
        [
          "large",
          "large"
        ],
        [
          "number",
          "number"
        ],
        [
          "sent out",
          "send out"
        ],
        [
          "Usenet",
          "Usenet"
        ],
        [
          "newsgroup",
          "newsgroup"
        ]
      ],
      "raw_glosses": [
        "(Internet) A malicious technique whereby a large number of cancel messages are sent out to one or more Usenet newsgroups."
      ],
      "tags": [
        "Internet",
        "uncountable"
      ]
    }
  ],
  "word": "cancelbombing"
}