"marche ou crève" meaning in French

{
  "etymology_templates": [
    {
      "args": {
        "1": "walk or die"
      },
      "expansion": "“walk or die”",
      "name": "m-g"
    },
    {
      "args": {
        "1": "walk or die"
      },
      "expansion": "Literally, “walk or die”",
      "name": "lit"
    }
  ],
  "etymology_text": "Literally, “walk or die”.",
  "head_templates": [
    {
      "args": {},
      "expansion": "marche ou crève",
      "name": "fr-phrase"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "phrase",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "French entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "fr",
          "name": "Death",
          "orig": "fr:Death",
          "parents": [
            "Body",
            "Life",
            "Human",
            "Nature",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "sink or swim, do or die"
      ],
      "id": "en-marche_ou_crève-fr-phrase-4lz8HXWI",
      "links": [
        [
          "sink or swim",
          "sink or swim"
        ],
        [
          "do or die",
          "do or die"
        ]
      ],
      "related": [
        {
          "english": "death march",
          "word": "marche de la mort"
        },
        {
          "word": "ça passe ou ça casse"
        },
        {
          "word": "quitte ou double"
        }
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/maʁ.ʃ‿u kʁɛv/"
    }
  ],
  "word": "marche ou crève"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "walk or die"
      },
      "expansion": "“walk or die”",
      "name": "m-g"
    },
    {
      "args": {
        "1": "walk or die"
      },
      "expansion": "Literally, “walk or die”",
      "name": "lit"
    }
  ],
  "etymology_text": "Literally, “walk or die”.",
  "head_templates": [
    {
      "args": {},
      "expansion": "marche ou crève",
      "name": "fr-phrase"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "phrase",
  "related": [
    {
      "english": "death march",
      "word": "marche de la mort"
    },
    {
      "word": "ça passe ou ça casse"
    },
    {
      "word": "quitte ou double"
    }
  ],
  "senses": [
    {
      "categories": [
        "French entries with incorrect language header",
        "French lemmas",
        "French multiword terms",
        "French phrases",
        "French terms with IPA pronunciation",
        "fr:Death"
      ],
      "glosses": [
        "sink or swim, do or die"
      ],
      "links": [
        [
          "sink or swim",
          "sink or swim"
        ],
        [
          "do or die",
          "do or die"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/maʁ.ʃ‿u kʁɛv/"
    }
  ],
  "word": "marche ou crève"
}