"bad patch" meaning in English

{
  "forms": [
    {
      "form": "bad patches",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "es"
      },
      "expansion": "bad patch (plural bad patches)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "bold_text_offsets": [
            [
              6,
              15
            ]
          ],
          "text": "hit a bad patch",
          "type": "example"
        },
        {
          "bold_text_offsets": [
            [
              18,
              27
            ]
          ],
          "ref": "1983, “Too Low For Zero”, performed by Elton John:",
          "text": "I got myself in a bad patch lately / I can't seem to get much sleep",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A difficult or challenging time."
      ],
      "id": "en-bad_patch-en-noun-Wjv2zQeF",
      "links": [
        [
          "difficult",
          "difficult"
        ],
        [
          "challenging",
          "challenging"
        ]
      ]
    }
  ],
  "word": "bad patch"
}

{
  "forms": [
    {
      "form": "bad patches",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "es"
      },
      "expansion": "bad patch (plural bad patches)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with quotations",
        "English terms with usage examples",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "bold_text_offsets": [
            [
              6,
              15
            ]
          ],
          "text": "hit a bad patch",
          "type": "example"
        },
        {
          "bold_text_offsets": [
            [
              18,
              27
            ]
          ],
          "ref": "1983, “Too Low For Zero”, performed by Elton John:",
          "text": "I got myself in a bad patch lately / I can't seem to get much sleep",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A difficult or challenging time."
      ],
      "links": [
        [
          "difficult",
          "difficult"
        ],
        [
          "challenging",
          "challenging"
        ]
      ]
    }
  ],
  "word": "bad patch"
}