"carry someone's water" meaning in English

{
  "forms": [
    {
      "form": "carries someone's water",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "carrying someone's water",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "carried someone's water",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "carried someone's water",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "carry<> someone's water"
      },
      "expansion": "carry someone's water (third-person singular simple present carries someone's water, present participle carrying someone's water, simple past and past participle carried someone's water)",
      "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"
        }
      ],
      "examples": [
        {
          "ref": "1996, James Carroll, The City Below, page 287",
          "text": "\"I hear things are good.\" / Moran shrugged. \"Depends on who you're talking to. Who would you be talking to, Squire?\" / \"Frank\" / \"I thought that might be it. You still carrying his water?",
          "type": "quotation"
        },
        {
          "ref": "2005, Martin Clark, Plain Heathen Mischief, page 394",
          "text": "I've discovered the Lord doesn't need lackeys, lieutenants, minions, representatives and envoys to carry His water and discharge His affairs.",
          "type": "quotation"
        },
        {
          "ref": "2006, James Bruno, Chasm, page 113",
          "text": "\"Nope. Just here to see a staffer about something.\" / \"Staffers. Yeah, well. They hold the Congressman's bag and carry his water sometimes all right.\"",
          "type": "quotation"
        }
      ],
      "glosses": [
        "To do someone's bidding; to serve someone's interests."
      ],
      "id": "en-carry_someone's_water-en-verb-YUQUwJT3",
      "links": [
        [
          "bidding",
          "bidding"
        ]
      ],
      "raw_glosses": [
        "(intransitive, idiomatic) To do someone's bidding; to serve someone's interests."
      ],
      "synonyms": [
        {
          "word": "serve"
        }
      ],
      "tags": [
        "idiomatic",
        "intransitive"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "en-au-carry someone's water.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/2/2a/En-au-carry_someone%27s_water.ogg/En-au-carry_someone%27s_water.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/2/2a/En-au-carry_someone%27s_water.ogg",
      "tags": [
        "Australia"
      ],
      "text": "Audio (AU)"
    }
  ],
  "word": "carry someone's water"
}

{
  "forms": [
    {
      "form": "carries someone's water",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "carrying someone's water",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "carried someone's water",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "carried someone's water",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "carry<> someone's water"
      },
      "expansion": "carry someone's water (third-person singular simple present carries someone's water, present participle carrying someone's water, simple past and past participle carried someone's water)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English idioms",
        "English intransitive verbs",
        "English lemmas",
        "English multiword terms",
        "English terms with audio links",
        "English terms with quotations",
        "English verbs"
      ],
      "examples": [
        {
          "ref": "1996, James Carroll, The City Below, page 287",
          "text": "\"I hear things are good.\" / Moran shrugged. \"Depends on who you're talking to. Who would you be talking to, Squire?\" / \"Frank\" / \"I thought that might be it. You still carrying his water?",
          "type": "quotation"
        },
        {
          "ref": "2005, Martin Clark, Plain Heathen Mischief, page 394",
          "text": "I've discovered the Lord doesn't need lackeys, lieutenants, minions, representatives and envoys to carry His water and discharge His affairs.",
          "type": "quotation"
        },
        {
          "ref": "2006, James Bruno, Chasm, page 113",
          "text": "\"Nope. Just here to see a staffer about something.\" / \"Staffers. Yeah, well. They hold the Congressman's bag and carry his water sometimes all right.\"",
          "type": "quotation"
        }
      ],
      "glosses": [
        "To do someone's bidding; to serve someone's interests."
      ],
      "links": [
        [
          "bidding",
          "bidding"
        ]
      ],
      "raw_glosses": [
        "(intransitive, idiomatic) To do someone's bidding; to serve someone's interests."
      ],
      "tags": [
        "idiomatic",
        "intransitive"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "en-au-carry someone's water.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/2/2a/En-au-carry_someone%27s_water.ogg/En-au-carry_someone%27s_water.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/2/2a/En-au-carry_someone%27s_water.ogg",
      "tags": [
        "Australia"
      ],
      "text": "Audio (AU)"
    }
  ],
  "synonyms": [
    {
      "word": "serve"
    }
  ],
  "word": "carry someone's water"
}