"/s" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "< > </ >"
      },
      "expansion": "< >",
      "name": "unsupported"
    }
  ],
  "etymology_text": "Based on pseudo–XML code, in which a slash indicates the end of an element (for example, </b> marks the end of bold formatting). Originally written as </sarcasm> (to mark the end of a sarcastic message) with the block of text enclosed (see < >), this was later simplified to /sarcasm and eventually just /s.",
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "symbol",
        "head": "/s"
      },
      "expansion": "/s",
      "name": "head"
    },
    {
      "args": {
        "head": "/s"
      },
      "expansion": "/s",
      "name": "en-symbol"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "symbol",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English symbols",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English tone indicators",
          "parents": [
            "Tone indicators",
            "Internet slang",
            "Slang",
            "Terms by usage"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 2 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "Wow, I never would have guessed /s",
          "type": "example"
        }
      ],
      "glosses": [
        "Denotes that the preceding statement is sarcastic."
      ],
      "id": "en-/s-en-symbol-PjlLd~ng",
      "links": [
        [
          "Internet",
          "Internet"
        ],
        [
          "slang",
          "slang"
        ],
        [
          "tone indicator",
          "tone indicator"
        ],
        [
          "sarcastic",
          "sarcastic#English"
        ]
      ],
      "qualifier": "tone indicator",
      "raw_glosses": [
        "(Internet slang, tone indicator) Denotes that the preceding statement is sarcastic."
      ],
      "related": [
        {
          "word": "/rant"
        }
      ],
      "synonyms": [
        {
          "word": "</s>"
        }
      ],
      "tags": [
        "Internet"
      ]
    }
  ],
  "word": "/s"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "< > </ >"
      },
      "expansion": "< >",
      "name": "unsupported"
    }
  ],
  "etymology_text": "Based on pseudo–XML code, in which a slash indicates the end of an element (for example, </b> marks the end of bold formatting). Originally written as </sarcasm> (to mark the end of a sarcastic message) with the block of text enclosed (see < >), this was later simplified to /sarcasm and eventually just /s.",
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "symbol",
        "head": "/s"
      },
      "expansion": "/s",
      "name": "head"
    },
    {
      "args": {
        "head": "/s"
      },
      "expansion": "/s",
      "name": "en-symbol"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "symbol",
  "related": [
    {
      "word": "/rant"
    }
  ],
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English internet slang",
        "English lemmas",
        "English symbols",
        "English terms with non-redundant non-automated sortkeys",
        "English terms with usage examples",
        "English tone indicators",
        "Pages with 2 entries",
        "Pages with entries"
      ],
      "examples": [
        {
          "text": "Wow, I never would have guessed /s",
          "type": "example"
        }
      ],
      "glosses": [
        "Denotes that the preceding statement is sarcastic."
      ],
      "links": [
        [
          "Internet",
          "Internet"
        ],
        [
          "slang",
          "slang"
        ],
        [
          "tone indicator",
          "tone indicator"
        ],
        [
          "sarcastic",
          "sarcastic#English"
        ]
      ],
      "qualifier": "tone indicator",
      "raw_glosses": [
        "(Internet slang, tone indicator) Denotes that the preceding statement is sarcastic."
      ],
      "tags": [
        "Internet"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "</s>"
    }
  ],
  "word": "/s"
}