"the wheels fell off" meaning in English

{
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "phrase",
        "head": "the wheels fell off"
      },
      "expansion": "the wheels fell off",
      "name": "head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "phrase",
  "senses": [
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      "categories": [
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          "kind": "other",
          "name": "English entries with incorrect language header",
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      "examples": [
        {
          "text": "The coach said, \"We were doing well for a while, but they got tired and then the wheels fell off\".",
          "type": "example"
        }
      ],
      "glosses": [
        "Something failed, often after or amidst a laborious, tiring process."
      ],
      "id": "en-the_wheels_fell_off-en-phrase-l4yusptz",
      "raw_glosses": [
        "(idiomatic) Something failed, often after or amidst a laborious, tiring process."
      ],
      "synonyms": [
        {
          "word": "the wheels came off"
        },
        {
          "word": "the wheels fell off the bus"
        },
        {
          "word": "the wheels came off the bus"
        },
        {
          "word": "the wheels fell off the wagon"
        },
        {
          "word": "the wheels came off the wagon"
        }
      ],
      "tags": [
        "idiomatic"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "En-au-the wheels fell off.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/7/74/En-au-the_wheels_fell_off.ogg/En-au-the_wheels_fell_off.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/7/74/En-au-the_wheels_fell_off.ogg",
      "tags": [
        "Australia"
      ],
      "text": "Audio (AU)"
    }
  ],
  "word": "the wheels fell off"
}

{
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    {
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        "head": "the wheels fell off"
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      "expansion": "the wheels fell off",
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  "lang": "English",
  "lang_code": "en",
  "pos": "phrase",
  "senses": [
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        "English entries with language name categories using raw markup",
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        "English terms with usage examples"
      ],
      "examples": [
        {
          "text": "The coach said, \"We were doing well for a while, but they got tired and then the wheels fell off\".",
          "type": "example"
        }
      ],
      "glosses": [
        "Something failed, often after or amidst a laborious, tiring process."
      ],
      "raw_glosses": [
        "(idiomatic) Something failed, often after or amidst a laborious, tiring process."
      ],
      "tags": [
        "idiomatic"
      ]
    }
  ],
  "sounds": [
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      "audio": "En-au-the wheels fell off.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/7/74/En-au-the_wheels_fell_off.ogg/En-au-the_wheels_fell_off.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/7/74/En-au-the_wheels_fell_off.ogg",
      "tags": [
        "Australia"
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      "text": "Audio (AU)"
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  ],
  "synonyms": [
    {
      "word": "the wheels came off"
    },
    {
      "word": "the wheels fell off the bus"
    },
    {
      "word": "the wheels came off the bus"
    },
    {
      "word": "the wheels fell off the wagon"
    },
    {
      "word": "the wheels came off the wagon"
    }
  ],
  "word": "the wheels fell off"
}