"grease monkey" meaning in English

{
  "etymology_text": "First use appears c. 1910 in a translated work. See cite below. May have originated during the Industrial Revolution in Great Britain, when children were used to grease the large rotating axles which were used to transfer power from one centralized steam engine to all of the machines on the factory floor. These children, covered in grease and crawling in the tight spaces in the ceilings, were equated with monkeys.",
  "forms": [
    {
      "form": "grease monkeys",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "grease monkey (plural grease monkeys)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Entries with translation boxes",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Finnish translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with French translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Occupations",
          "orig": "en:Occupations",
          "parents": [
            "People",
            "Work",
            "Human",
            "Human activity",
            "All topics",
            "Human behaviour",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "People",
          "orig": "en:People",
          "parents": [
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1910, Antonin Gilbert Sertillanges, Jeanne d'Arc et l'Union française - discours prononcé à Notre-Dame le 8 Mai 1910 en la première fête liturgique de la Bienheureuse Jeanne d'Arc, page 10:",
          "text": "If you appear like a tramp or grease-monkey how can you expect to meet the people who are able to support your business.",
          "type": "quote"
        },
        {
          "ref": "1918, Motor World Publishing Company (publisher), Motor World for Jobbers, Dealers and Garagemen - Volume 55, page 29:",
          "text": "Maybe some other \"grease monkey,\" as I call mechanics, will correct me.",
          "type": "quote"
        },
        {
          "ref": "1920, International Union of Elevator Constructors (publisher), The Elevator Constructor - Volume 17, page 30:",
          "text": "Brother W.M. Hillery resigned from his job as grease monkey and is working for Armour and Company, but as we understand he is just itching to get with the old bunch.",
          "type": "quote"
        }
      ],
      "glosses": [
        "A mechanic, often with the specific connotation of an automobile mechanic."
      ],
      "id": "en-grease_monkey-en-noun-bXuXpGd4",
      "links": [
        [
          "mechanic",
          "mechanic"
        ],
        [
          "connotation",
          "connotation"
        ],
        [
          "automobile",
          "automobile"
        ]
      ],
      "raw_glosses": [
        "(idiomatic, slang) A mechanic, often with the specific connotation of an automobile mechanic."
      ],
      "related": [
        {
          "word": "greaser"
        },
        {
          "word": "powder monkey"
        },
        {
          "word": "rigging monkey"
        },
        {
          "word": "code monkey"
        },
        {
          "word": "oil trash"
        },
        {
          "word": "shade tree mechanic"
        }
      ],
      "tags": [
        "idiomatic",
        "slang"
      ],
      "translations": [
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "a mechanic",
          "word": "rasva-apina"
        },
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "a mechanic",
          "word": "rasvari"
        },
        {
          "code": "fr",
          "lang": "French",
          "sense": "a mechanic",
          "tags": [
            "masculine"
          ],
          "word": "mécano"
        }
      ]
    }
  ],
  "sounds": [
    {
      "audio": "en-au-grease monkey.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/b/b0/En-au-grease_monkey.ogg/En-au-grease_monkey.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/b/b0/En-au-grease_monkey.ogg"
    }
  ],
  "word": "grease monkey"
}

{
  "etymology_text": "First use appears c. 1910 in a translated work. See cite below. May have originated during the Industrial Revolution in Great Britain, when children were used to grease the large rotating axles which were used to transfer power from one centralized steam engine to all of the machines on the factory floor. These children, covered in grease and crawling in the tight spaces in the ceilings, were equated with monkeys.",
  "forms": [
    {
      "form": "grease monkeys",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "grease monkey (plural grease monkeys)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "greaser"
    },
    {
      "word": "powder monkey"
    },
    {
      "word": "rigging monkey"
    },
    {
      "word": "code monkey"
    },
    {
      "word": "oil trash"
    },
    {
      "word": "shade tree mechanic"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English idioms",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English slang",
        "English terms with quotations",
        "Entries with translation boxes",
        "Pages with 1 entry",
        "Pages with entries",
        "Terms with Finnish translations",
        "Terms with French translations",
        "en:Occupations",
        "en:People"
      ],
      "examples": [
        {
          "ref": "1910, Antonin Gilbert Sertillanges, Jeanne d'Arc et l'Union française - discours prononcé à Notre-Dame le 8 Mai 1910 en la première fête liturgique de la Bienheureuse Jeanne d'Arc, page 10:",
          "text": "If you appear like a tramp or grease-monkey how can you expect to meet the people who are able to support your business.",
          "type": "quote"
        },
        {
          "ref": "1918, Motor World Publishing Company (publisher), Motor World for Jobbers, Dealers and Garagemen - Volume 55, page 29:",
          "text": "Maybe some other \"grease monkey,\" as I call mechanics, will correct me.",
          "type": "quote"
        },
        {
          "ref": "1920, International Union of Elevator Constructors (publisher), The Elevator Constructor - Volume 17, page 30:",
          "text": "Brother W.M. Hillery resigned from his job as grease monkey and is working for Armour and Company, but as we understand he is just itching to get with the old bunch.",
          "type": "quote"
        }
      ],
      "glosses": [
        "A mechanic, often with the specific connotation of an automobile mechanic."
      ],
      "links": [
        [
          "mechanic",
          "mechanic"
        ],
        [
          "connotation",
          "connotation"
        ],
        [
          "automobile",
          "automobile"
        ]
      ],
      "raw_glosses": [
        "(idiomatic, slang) A mechanic, often with the specific connotation of an automobile mechanic."
      ],
      "tags": [
        "idiomatic",
        "slang"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "en-au-grease monkey.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/b/b0/En-au-grease_monkey.ogg/En-au-grease_monkey.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/b/b0/En-au-grease_monkey.ogg"
    }
  ],
  "translations": [
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "a mechanic",
      "word": "rasva-apina"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "a mechanic",
      "word": "rasvari"
    },
    {
      "code": "fr",
      "lang": "French",
      "sense": "a mechanic",
      "tags": [
        "masculine"
      ],
      "word": "mécano"
    }
  ],
  "word": "grease monkey"
}