"^W" meaning in English

{
  "etymology_text": "From the visual representation of the terminal encoding of the keypress Ctrl-W, the \"delete back to whitespace\" command in GNU readline, which is commonly available in GNU shells and other command-line utilities.",
  "lang": "English",
  "lang_code": "en",
  "pos": "intj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English words spelled without vowels",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 2 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "langcode": "en",
          "name": "Internet",
          "orig": "en:Internet",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "bold_text_offsets": [
            [
              18,
              24
            ]
          ],
          "text": "Yeah, he's a real jerk^W civility-challenged fellow.",
          "type": "example"
        },
        {
          "bold_text_offsets": [
            [
              101,
              116
            ]
          ],
          "text": "Well, Mimi, you’re old enough that you should go to parties now, so this should be your last year to tickle feet^W^W trick-or-treat.",
          "type": "example"
        }
      ],
      "glosses": [
        "Delete that last word."
      ],
      "id": "en-^W-en-intj-tbXmr0lI",
      "links": [
        [
          "Internet",
          "Internet"
        ],
        [
          "Delete",
          "delete"
        ],
        [
          "last",
          "last"
        ],
        [
          "word",
          "word"
        ]
      ],
      "raw_glosses": [
        "(Internet slang, usually humorous) Delete that last word."
      ],
      "related": [
        {
          "word": "^H"
        },
        {
          "word": "in Minecraft"
        },
        {
          "word": "just kidding"
        }
      ],
      "tags": [
        "Internet",
        "humorous",
        "usually"
      ]
    }
  ],
  "word": "^W"
}

{
  "etymology_text": "From the visual representation of the terminal encoding of the keypress Ctrl-W, the \"delete back to whitespace\" command in GNU readline, which is commonly available in GNU shells and other command-line utilities.",
  "lang": "English",
  "lang_code": "en",
  "pos": "intj",
  "related": [
    {
      "word": "^H"
    },
    {
      "word": "in Minecraft"
    },
    {
      "word": "just kidding"
    }
  ],
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English humorous terms",
        "English interjections",
        "English lemmas",
        "English slang",
        "English terms spelled with ^",
        "English terms with usage examples",
        "English words spelled without vowels",
        "Pages with 2 entries",
        "Pages with entries",
        "en:Internet"
      ],
      "examples": [
        {
          "bold_text_offsets": [
            [
              18,
              24
            ]
          ],
          "text": "Yeah, he's a real jerk^W civility-challenged fellow.",
          "type": "example"
        },
        {
          "bold_text_offsets": [
            [
              101,
              116
            ]
          ],
          "text": "Well, Mimi, you’re old enough that you should go to parties now, so this should be your last year to tickle feet^W^W trick-or-treat.",
          "type": "example"
        }
      ],
      "glosses": [
        "Delete that last word."
      ],
      "links": [
        [
          "Internet",
          "Internet"
        ],
        [
          "Delete",
          "delete"
        ],
        [
          "last",
          "last"
        ],
        [
          "word",
          "word"
        ]
      ],
      "raw_glosses": [
        "(Internet slang, usually humorous) Delete that last word."
      ],
      "tags": [
        "Internet",
        "humorous",
        "usually"
      ]
    }
  ],
  "word": "^W"
}