"UwU" meaning in Translingual

{
  "head_templates": [
    {
      "args": {
        "1": "mul",
        "2": "symbol"
      },
      "expansion": "UwU",
      "name": "head"
    }
  ],
  "lang": "Translingual",
  "lang_code": "mul",
  "pos": "symbol",
  "senses": [
    {
      "alt_of": [
        {
          "word": "uwu"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Translingual emoticons",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Translingual entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "mul",
          "name": "Furry fandom",
          "orig": "mul:Furry fandom",
          "parents": [
            "Fandom",
            "Subcultures",
            "Culture",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Alternative form of uwu"
      ],
      "id": "en-UwU-mul-symbol-sMp28NxU",
      "links": [
        [
          "uwu",
          "uwu#Translingual"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative"
      ]
    }
  ],
  "word": "UwU"
}

{
  "head_templates": [
    {
      "args": {
        "1": "mul",
        "2": "symbol"
      },
      "expansion": "UwU",
      "name": "head"
    }
  ],
  "lang": "Translingual",
  "lang_code": "mul",
  "pos": "symbol",
  "senses": [
    {
      "alt_of": [
        {
          "word": "uwu"
        }
      ],
      "categories": [
        "Pages with 1 entry",
        "Pages with entries",
        "Translingual emoticons",
        "Translingual entries with incorrect language header",
        "Translingual lemmas",
        "Translingual palindromes",
        "Translingual symbols",
        "mul:Furry fandom"
      ],
      "glosses": [
        "Alternative form of uwu"
      ],
      "links": [
        [
          "uwu",
          "uwu#Translingual"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative"
      ]
    }
  ],
  "word": "UwU"
}