"be careful what you wish for" meaning in English

{
  "head_templates": [
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      "expansion": "be careful what you wish for",
      "name": "head"
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "phrase",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
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          "source": "w"
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        {
          "kind": "other",
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        {
          "kind": "other",
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          "parents": [],
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      ],
      "glosses": [
        "The desired outcome may not be as desirable once it has been attained."
      ],
      "id": "en-be_careful_what_you_wish_for-en-phrase-rlRsqYH-",
      "related": [
        {
          "word": "double-edged sword"
        },
        {
          "word": "monkey's paw"
        }
      ],
      "translations": [
        {
          "code": "bg",
          "lang": "Bulgarian",
          "roman": "vnimavaj kakvo si poželavaš",
          "sense": "Translations",
          "word": "внимавай какво си пожелаваш"
        },
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "Translations",
          "word": "varo mitä toivot, se voi toteutua"
        },
        {
          "code": "pl",
          "lang": "Polish",
          "sense": "Translations",
          "word": "uważaj, czego pragniesz uważaj na marzenia"
        },
        {
          "code": "ru",
          "lang": "Russian",
          "roman": "budʹ ostorožna s želanijami",
          "sense": "Translations",
          "word": "будь осторожна с желаниями"
        },
        {
          "code": "es",
          "lang": "Spanish",
          "sense": "Translations",
          "word": "¿no querías caldo? ¡pues toma dos tazas!"
        },
        {
          "code": "zza",
          "lang": "Zazaki",
          "sense": "Translations",
          "word": "to çı waşto ey diqet kı"
        }
      ]
    }
  ],
  "word": "be careful what you wish for"
}

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      "args": {
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      "expansion": "be careful what you wish for",
      "name": "head"
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "phrase",
  "related": [
    {
      "word": "double-edged sword"
    },
    {
      "word": "monkey's paw"
    }
  ],
  "senses": [
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        "English lemmas",
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        "English phrases",
        "Entries with translation boxes",
        "Pages with 1 entry",
        "Pages with entries",
        "Terms with Bulgarian translations",
        "Terms with Finnish translations",
        "Terms with Polish translations",
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        "Terms with Zazaki translations",
        "Translation table header lacks gloss"
      ],
      "glosses": [
        "The desired outcome may not be as desirable once it has been attained."
      ]
    }
  ],
  "translations": [
    {
      "code": "bg",
      "lang": "Bulgarian",
      "roman": "vnimavaj kakvo si poželavaš",
      "sense": "Translations",
      "word": "внимавай какво си пожелаваш"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "Translations",
      "word": "varo mitä toivot, se voi toteutua"
    },
    {
      "code": "pl",
      "lang": "Polish",
      "sense": "Translations",
      "word": "uważaj, czego pragniesz uważaj na marzenia"
    },
    {
      "code": "pl",
      "lang": "Polish",
      "sense": "Translations",
      "word": "uważaj, czego pragniesz uważaj na marzenia"
    },
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "budʹ ostorožna s želanijami",
      "sense": "Translations",
      "word": "будь осторожна с желаниями"
    },
    {
      "code": "es",
      "lang": "Spanish",
      "sense": "Translations",
      "word": "¿no querías caldo? ¡pues toma dos tazas!"
    },
    {
      "code": "zza",
      "lang": "Zazaki",
      "sense": "Translations",
      "word": "to çı waşto ey diqet kı"
    }
  ],
  "word": "be careful what you wish for"
}