"cramp up" meaning in English

{
  "forms": [
    {
      "form": "cramps up",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "cramping up",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "cramped up",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "cramped up",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "*"
      },
      "expansion": "cramp up (third-person singular simple present cramps up, present participle cramping up, simple past and past participle cramped up)",
      "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 phrasal verbs formed with \"up\"",
          "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": [
            [
              105,
              113
            ]
          ],
          "ref": "2004, Intelligent Systems, translated by Nintendo of America, Paper Mario: The Thousand-Year Door, Nintendo, GameCube, level/area: Hooktail Castle:",
          "text": "I was wondering if you could let me out of this chest. I've been locked in here so long, I'm starting to cramp up like you wouldn't believe.",
          "type": "quote"
        }
      ],
      "glosses": [
        "To become affected with muscle cramps."
      ],
      "id": "en-cramp_up-en-verb-MZ2uI2LC",
      "raw_glosses": [
        "(intransitive) To become affected with muscle cramps."
      ],
      "tags": [
        "intransitive"
      ]
    }
  ],
  "word": "cramp up"
}

{
  "forms": [
    {
      "form": "cramps up",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "cramping up",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "cramped up",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "cramped up",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "*"
      },
      "expansion": "cramp up (third-person singular simple present cramps up, present participle cramping up, simple past and past participle cramped up)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English intransitive verbs",
        "English lemmas",
        "English multiword terms",
        "English phrasal verbs",
        "English phrasal verbs formed with \"up\"",
        "English terms with quotations",
        "English verbs",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "bold_text_offsets": [
            [
              105,
              113
            ]
          ],
          "ref": "2004, Intelligent Systems, translated by Nintendo of America, Paper Mario: The Thousand-Year Door, Nintendo, GameCube, level/area: Hooktail Castle:",
          "text": "I was wondering if you could let me out of this chest. I've been locked in here so long, I'm starting to cramp up like you wouldn't believe.",
          "type": "quote"
        }
      ],
      "glosses": [
        "To become affected with muscle cramps."
      ],
      "raw_glosses": [
        "(intransitive) To become affected with muscle cramps."
      ],
      "tags": [
        "intransitive"
      ]
    }
  ],
  "word": "cramp up"
}