"o/" meaning in Translingual

{
  "etymology_text": "o (head) + / (waving arm)",
  "forms": [
    {
      "form": "\\o",
      "tags": [
        "alternative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "mul",
        "10": "",
        "2": "symbol",
        "3": "",
        "4": "",
        "5": "or",
        "6": "",
        "7": "or",
        "8": "",
        "9": "or",
        "cat2": "",
        "f1lang": "en",
        "f1nolink": "",
        "f2lang": "en",
        "f2nolink": "",
        "f3lang": "en",
        "f3nolink": "",
        "f4lang": "en",
        "f4nolink": "",
        "head": "o/",
        "head2": "",
        "head3": "",
        "head4": "",
        "nolinkhead": "",
        "sc": "Latn",
        "sort": ""
      },
      "expansion": "o/",
      "name": "head"
    },
    {
      "args": {
        "head": "o/"
      },
      "expansion": "o/",
      "name": "mul-symbol"
    }
  ],
  "lang": "Translingual",
  "lang_code": "mul",
  "pos": "symbol",
  "senses": [
    {
      "glosses": [
        "A hello or goodbye emoticon."
      ],
      "id": "en-o/-mul-symbol-~FACRIXP",
      "links": [
        [
          "emoticon",
          "emoticon#English"
        ]
      ]
    },
    {
      "categories": [
        {
          "_dis": "3 97",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "2 98",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "23 77",
          "kind": "other",
          "name": "Translingual emoticons",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "3 97",
          "kind": "other",
          "name": "Translingual entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "6 94",
          "kind": "other",
          "name": "Translingual terms with redundant script codes",
          "parents": [
            "Terms with redundant script codes",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "1 99",
          "kind": "topical",
          "langcode": "mul",
          "name": "Neo-Nazism",
          "orig": "mul:Neo-Nazism",
          "parents": [
            "Fascism",
            "Ideologies",
            "Nazism",
            "White supremacist ideology",
            "Politics",
            "Society",
            "Anti-Semitism",
            "Racism",
            "All topics",
            "Forms of discrimination",
            "Fundamental",
            "Discrimination"
          ],
          "source": "w+disamb"
        }
      ],
      "examples": [
        {
          "bold_text_offsets": [
            [
              129,
              131
            ]
          ],
          "ref": "2024 January 9, Tim Dickinson, “Nazi Chatbots: Meet the Worst New AI Innovation From Gab”, in Rolling Stone (in English):",
          "text": "The commenter — whose avatar is an Iron Cross, a symbol of Nazi Germany — signed off with a text emoji of a hail-Hitler salute: “o/”.",
          "type": "quote"
        }
      ],
      "glosses": [
        "A Nazi salute."
      ],
      "id": "en-o/-mul-symbol-fHEXhP8s",
      "links": [
        [
          "Nazi salute",
          "Nazi salute"
        ]
      ]
    }
  ],
  "word": "o/"
}

{
  "categories": [
    "Pages with 1 entry",
    "Pages with entries",
    "Translingual emoticons",
    "Translingual entries with incorrect language header",
    "Translingual lemmas",
    "Translingual symbols",
    "Translingual terms spelled with /",
    "Translingual terms with redundant script codes",
    "mul:Neo-Nazism"
  ],
  "etymology_text": "o (head) + / (waving arm)",
  "forms": [
    {
      "form": "\\o",
      "tags": [
        "alternative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "mul",
        "10": "",
        "2": "symbol",
        "3": "",
        "4": "",
        "5": "or",
        "6": "",
        "7": "or",
        "8": "",
        "9": "or",
        "cat2": "",
        "f1lang": "en",
        "f1nolink": "",
        "f2lang": "en",
        "f2nolink": "",
        "f3lang": "en",
        "f3nolink": "",
        "f4lang": "en",
        "f4nolink": "",
        "head": "o/",
        "head2": "",
        "head3": "",
        "head4": "",
        "nolinkhead": "",
        "sc": "Latn",
        "sort": ""
      },
      "expansion": "o/",
      "name": "head"
    },
    {
      "args": {
        "head": "o/"
      },
      "expansion": "o/",
      "name": "mul-symbol"
    }
  ],
  "lang": "Translingual",
  "lang_code": "mul",
  "pos": "symbol",
  "senses": [
    {
      "glosses": [
        "A hello or goodbye emoticon."
      ],
      "links": [
        [
          "emoticon",
          "emoticon#English"
        ]
      ]
    },
    {
      "categories": [
        "Translingual terms with quotations"
      ],
      "examples": [
        {
          "bold_text_offsets": [
            [
              129,
              131
            ]
          ],
          "ref": "2024 January 9, Tim Dickinson, “Nazi Chatbots: Meet the Worst New AI Innovation From Gab”, in Rolling Stone (in English):",
          "text": "The commenter — whose avatar is an Iron Cross, a symbol of Nazi Germany — signed off with a text emoji of a hail-Hitler salute: “o/”.",
          "type": "quote"
        }
      ],
      "glosses": [
        "A Nazi salute."
      ],
      "links": [
        [
          "Nazi salute",
          "Nazi salute"
        ]
      ]
    }
  ],
  "word": "o/"
}