"hit a wall" meaning in English

{
  "forms": [
    {
      "form": "hits a wall",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "hitting a wall",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "hit a wall",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "hit a wall",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "hit<,,hit> a wall"
      },
      "expansion": "hit a wall (third-person singular simple present hits a wall, present participle hitting a wall, simple past and past participle hit a wall)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "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 predicates",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2021 October 11, Jan Hoffman, quoting Steven Furr, “Boosters Are Complicating Efforts to Persuade the Unvaccinated to Get Shots”, in The New York Times, →ISSN:",
          "text": "“One day we just hit a wall,” said Dr. Steven Furr, who practices family medicine in rural Jackson, Ala., where he has even made house calls to give patients their Covid shots. “We had vaccinated everybody who wanted to be vaccinated and there was nobody left.”",
          "type": "quote"
        }
      ],
      "glosses": [
        "To come up against an insuperable problem."
      ],
      "id": "en-hit_a_wall-en-verb-fjuZH8rY",
      "links": [
        [
          "insuperable",
          "insuperable"
        ]
      ],
      "raw_glosses": [
        "(informal) To come up against an insuperable problem."
      ],
      "related": [
        {
          "word": "hit the wall"
        }
      ],
      "synonyms": [
        {
          "word": "hit a brick wall"
        }
      ],
      "tags": [
        "informal"
      ]
    }
  ],
  "word": "hit a wall"
}

{
  "forms": [
    {
      "form": "hits a wall",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "hitting a wall",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "hit a wall",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "hit a wall",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "hit<,,hit> a wall"
      },
      "expansion": "hit a wall (third-person singular simple present hits a wall, present participle hitting a wall, simple past and past participle hit a wall)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "related": [
    {
      "word": "hit the wall"
    }
  ],
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English informal terms",
        "English lemmas",
        "English multiword terms",
        "English predicates",
        "English terms with quotations",
        "English verbs",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "ref": "2021 October 11, Jan Hoffman, quoting Steven Furr, “Boosters Are Complicating Efforts to Persuade the Unvaccinated to Get Shots”, in The New York Times, →ISSN:",
          "text": "“One day we just hit a wall,” said Dr. Steven Furr, who practices family medicine in rural Jackson, Ala., where he has even made house calls to give patients their Covid shots. “We had vaccinated everybody who wanted to be vaccinated and there was nobody left.”",
          "type": "quote"
        }
      ],
      "glosses": [
        "To come up against an insuperable problem."
      ],
      "links": [
        [
          "insuperable",
          "insuperable"
        ]
      ],
      "raw_glosses": [
        "(informal) To come up against an insuperable problem."
      ],
      "tags": [
        "informal"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "hit a brick wall"
    }
  ],
  "word": "hit a wall"
}