"YMMD" meaning in English

{
  "head_templates": [
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        "1": "en",
        "2": "phrase"
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      "expansion": "YMMD",
      "name": "head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "phrase",
  "senses": [
    {
      "alt_of": [
        {
          "word": "you made my day"
        }
      ],
      "categories": [],
      "examples": [
        {
          "ref": "2007 November 21, Jürgen Exner, “Re: Calling a SQL Server Stored Procedure from within Perl”, in comp.lang.perl.misc (Usenet)",
          "text": "LOLROTFL, YMMD!!!\nMay I quote those words occasionally?",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Initialism of you made my day."
      ],
      "id": "en-YMMD-en-phrase-YQp-PeK2",
      "links": [
        [
          "Internet",
          "Internet"
        ],
        [
          "slang",
          "slang"
        ],
        [
          "you",
          "you#English"
        ],
        [
          "made my day",
          "make someone's day#English"
        ]
      ],
      "raw_glosses": [
        "(Internet slang) Initialism of you made my day."
      ],
      "tags": [
        "Internet",
        "abbreviation",
        "alt-of",
        "initialism"
      ]
    },
    {
      "alt_of": [
        {
          "word": "your mileage may differ"
        }
      ],
      "categories": [
        {
          "_dis": "15 85",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "examples": [
        {
          "ref": "2012 May 28, a l l y, “Re: Ask Umra: Kindles”, in uk.media.radio.archers (Usenet)",
          "text": "I made my own Kindle case. (I make bags: it's just something I do. Some people make jam: I make cases.) It's simply a padded slip case (made from rather exciting fabric, though!) to contain it and protect it from knocks and scratches. When I want to use it, I take it, and clip my light to it. It's perfect for me, but YMMD.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Initialism of your mileage may differ."
      ],
      "id": "en-YMMD-en-phrase-h3Ynohov",
      "links": [
        [
          "Internet",
          "Internet"
        ],
        [
          "slang",
          "slang"
        ],
        [
          "your mileage may differ",
          "your mileage may differ#English"
        ]
      ],
      "raw_glosses": [
        "(Internet slang) Initialism of your mileage may differ."
      ],
      "related": [
        {
          "_dis1": "2 98",
          "sense": "your mileage may differ",
          "word": "YMMV"
        }
      ],
      "tags": [
        "Internet",
        "abbreviation",
        "alt-of",
        "initialism"
      ]
    }
  ],
  "word": "YMMD"
}

{
  "categories": [
    "English entries with incorrect language header",
    "English lemmas",
    "English phrases"
  ],
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "phrase"
      },
      "expansion": "YMMD",
      "name": "head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "phrase",
  "related": [
    {
      "sense": "your mileage may differ",
      "word": "YMMV"
    }
  ],
  "senses": [
    {
      "alt_of": [
        {
          "word": "you made my day"
        }
      ],
      "categories": [
        "English initialisms",
        "English internet slang",
        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "2007 November 21, Jürgen Exner, “Re: Calling a SQL Server Stored Procedure from within Perl”, in comp.lang.perl.misc (Usenet)",
          "text": "LOLROTFL, YMMD!!!\nMay I quote those words occasionally?",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Initialism of you made my day."
      ],
      "links": [
        [
          "Internet",
          "Internet"
        ],
        [
          "slang",
          "slang"
        ],
        [
          "you",
          "you#English"
        ],
        [
          "made my day",
          "make someone's day#English"
        ]
      ],
      "raw_glosses": [
        "(Internet slang) Initialism of you made my day."
      ],
      "tags": [
        "Internet",
        "abbreviation",
        "alt-of",
        "initialism"
      ]
    },
    {
      "alt_of": [
        {
          "word": "your mileage may differ"
        }
      ],
      "categories": [
        "English initialisms",
        "English internet slang",
        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "2012 May 28, a l l y, “Re: Ask Umra: Kindles”, in uk.media.radio.archers (Usenet)",
          "text": "I made my own Kindle case. (I make bags: it's just something I do. Some people make jam: I make cases.) It's simply a padded slip case (made from rather exciting fabric, though!) to contain it and protect it from knocks and scratches. When I want to use it, I take it, and clip my light to it. It's perfect for me, but YMMD.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Initialism of your mileage may differ."
      ],
      "links": [
        [
          "Internet",
          "Internet"
        ],
        [
          "slang",
          "slang"
        ],
        [
          "your mileage may differ",
          "your mileage may differ#English"
        ]
      ],
      "raw_glosses": [
        "(Internet slang) Initialism of your mileage may differ."
      ],
      "tags": [
        "Internet",
        "abbreviation",
        "alt-of",
        "initialism"
      ]
    }
  ],
  "word": "YMMD"
}