"three-finger salute" meaning in English

{
  "forms": [
    {
      "form": "three-finger salutes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "three-finger salute (plural three-finger salutes)",
      "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": "topical",
          "langcode": "en",
          "name": "Computing",
          "orig": "en:Computing",
          "parents": [
            "Technology",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1986, February 25, Charles Petzold, PC Magazine, volume 5, number 4, article \"Operating in a New Environment\"",
          "text": "THE THREE-FINGER SALUTE … to suddenly find that your keyboard is frozen or to watching the screen fill up with garbage. You may not even be aware of the two different types of crashes, the soft crash (recoverable by the three-finger salute, Ctrl-Alt-Del) or the hard crash (big red switch and count to 5 slowly)."
        }
      ],
      "glosses": [
        "Control-Alt-Delete, a keypress used to reset or interrupt the computer."
      ],
      "id": "en-three-finger_salute-en-noun-bHJEeEP8",
      "links": [
        [
          "computing",
          "computing#Noun"
        ],
        [
          "humorous",
          "humorous"
        ],
        [
          "keypress",
          "keypress"
        ]
      ],
      "raw_glosses": [
        "(computing, humorous) Control-Alt-Delete, a keypress used to reset or interrupt the computer."
      ],
      "related": [
        {
          "word": "one-finger salute"
        },
        {
          "word": "two-finger salute"
        }
      ],
      "tags": [
        "humorous"
      ],
      "topics": [
        "computing",
        "engineering",
        "mathematics",
        "natural-sciences",
        "physical-sciences",
        "sciences"
      ]
    }
  ],
  "word": "three-finger salute"
}

{
  "forms": [
    {
      "form": "three-finger salutes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "three-finger salute (plural three-finger salutes)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "one-finger salute"
    },
    {
      "word": "two-finger salute"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English humorous terms",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "en:Computing"
      ],
      "examples": [
        {
          "ref": "1986, February 25, Charles Petzold, PC Magazine, volume 5, number 4, article \"Operating in a New Environment\"",
          "text": "THE THREE-FINGER SALUTE … to suddenly find that your keyboard is frozen or to watching the screen fill up with garbage. You may not even be aware of the two different types of crashes, the soft crash (recoverable by the three-finger salute, Ctrl-Alt-Del) or the hard crash (big red switch and count to 5 slowly)."
        }
      ],
      "glosses": [
        "Control-Alt-Delete, a keypress used to reset or interrupt the computer."
      ],
      "links": [
        [
          "computing",
          "computing#Noun"
        ],
        [
          "humorous",
          "humorous"
        ],
        [
          "keypress",
          "keypress"
        ]
      ],
      "raw_glosses": [
        "(computing, humorous) Control-Alt-Delete, a keypress used to reset or interrupt the computer."
      ],
      "tags": [
        "humorous"
      ],
      "topics": [
        "computing",
        "engineering",
        "mathematics",
        "natural-sciences",
        "physical-sciences",
        "sciences"
      ]
    }
  ],
  "word": "three-finger salute"
}