"stiff up" meaning in English

{
  "forms": [
    {
      "form": "stiffs up",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "stiffing up",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "stiffed up",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "stiffed up",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "*"
      },
      "expansion": "stiff up (third-person singular simple present stiffs up, present participle stiffing up, simple past and past participle stiffed up)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "glosses": [
        "To apply rubber without oil as part of the French polishing process."
      ],
      "id": "en-stiff_up-en-verb-3MEJK0QR",
      "links": [
        [
          "French polishing",
          "French polishing"
        ]
      ],
      "qualifier": "French polishing",
      "raw_glosses": [
        "(French polishing) To apply rubber without oil as part of the French polishing process."
      ]
    },
    {
      "categories": [
        {
          "_dis": "8 92",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "10 90",
          "kind": "other",
          "name": "English phrasal verbs formed with \"up\"",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "7 93",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "5 95",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "Synonym of stiffen up"
      ],
      "id": "en-stiff_up-en-verb-g2ZeUMPL",
      "links": [
        [
          "stiffen up",
          "stiffen up#English"
        ]
      ],
      "raw_glosses": [
        "(transitive) Synonym of stiffen up"
      ],
      "synonyms": [
        {
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "stiffen up"
        }
      ],
      "tags": [
        "transitive"
      ]
    }
  ],
  "word": "stiff up"
}

{
  "categories": [
    "English entries with incorrect language header",
    "English lemmas",
    "English multiword terms",
    "English phrasal verbs",
    "English phrasal verbs formed with \"up\"",
    "English verbs",
    "Pages with 1 entry",
    "Pages with entries"
  ],
  "forms": [
    {
      "form": "stiffs up",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "stiffing up",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "stiffed up",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "stiffed up",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "*"
      },
      "expansion": "stiff up (third-person singular simple present stiffs up, present participle stiffing up, simple past and past participle stiffed up)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "glosses": [
        "To apply rubber without oil as part of the French polishing process."
      ],
      "links": [
        [
          "French polishing",
          "French polishing"
        ]
      ],
      "qualifier": "French polishing",
      "raw_glosses": [
        "(French polishing) To apply rubber without oil as part of the French polishing process."
      ]
    },
    {
      "categories": [
        "English transitive verbs"
      ],
      "glosses": [
        "Synonym of stiffen up"
      ],
      "links": [
        [
          "stiffen up",
          "stiffen up#English"
        ]
      ],
      "raw_glosses": [
        "(transitive) Synonym of stiffen up"
      ],
      "synonyms": [
        {
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "stiffen up"
        }
      ],
      "tags": [
        "transitive"
      ]
    }
  ],
  "word": "stiff up"
}