"weak sister" meaning in English

{
  "forms": [
    {
      "form": "weak sisters",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "weak sister (plural weak sisters)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "_dis1": "0 0",
      "word": "weakest link"
    }
  ],
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "American English",
          "parents": [],
          "source": "w"
        },
        {
          "_dis": "79 21",
          "kind": "topical",
          "langcode": "en",
          "name": "People",
          "orig": "en:People",
          "parents": [
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w+disamb"
        }
      ],
      "examples": [
        {
          "ref": "1964, \"Political Thriller\" (film review of Seven Days in May), Time, Feb. 21",
          "text": "\"Your course of action this past year has bordered on criminal negligence,\" he barks to the man whose job he means to take. \"You're a weak sister, Mr. President.\""
        }
      ],
      "glosses": [
        "A person who is cowardly or indecisive."
      ],
      "id": "en-weak_sister-en-noun-eiliMKtl",
      "links": [
        [
          "derogatory",
          "derogatory"
        ],
        [
          "cowardly",
          "cowardly"
        ],
        [
          "indecisive",
          "indecisive"
        ]
      ],
      "raw_glosses": [
        "(chiefly US, idiomatic, derogatory) A person who is cowardly or indecisive."
      ],
      "tags": [
        "US",
        "derogatory",
        "idiomatic"
      ]
    },
    {
      "categories": [
        {
          "kind": "other",
          "name": "American English",
          "parents": [],
          "source": "w"
        },
        {
          "_dis": "28 72",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "19 81",
          "kind": "other",
          "name": "English entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "27 73",
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "examples": [
        {
          "ref": "1991 May 20, Larry Reibstein, “A Mexican Miracle?”, in Newsweek",
          "text": "San Antonio has always been viewed as the weak sister of the big regional centers of Houston and Dallas.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A person or thing which is the least robust or least dependable member of a group."
      ],
      "id": "en-weak_sister-en-noun-P7V5l9OA",
      "links": [
        [
          "robust",
          "robust"
        ],
        [
          "dependable",
          "dependable"
        ]
      ],
      "raw_glosses": [
        "(chiefly US, idiomatic) A person or thing which is the least robust or least dependable member of a group."
      ],
      "synonyms": [
        {
          "_dis1": "6 94",
          "sense": "least robust of a group",
          "word": "sick man"
        }
      ],
      "tags": [
        "US",
        "idiomatic"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "En-au-weak sister.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/9/90/En-au-weak_sister.ogg/En-au-weak_sister.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/9/90/En-au-weak_sister.ogg",
      "tags": [
        "Australia"
      ],
      "text": "Audio (AU)"
    }
  ],
  "word": "weak sister"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English entries with topic categories using raw markup",
    "English lemmas",
    "English multiword terms",
    "English nouns",
    "English terms with audio links",
    "English terms with non-redundant non-automated sortkeys",
    "en:People"
  ],
  "forms": [
    {
      "form": "weak sisters",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "weak sister (plural weak sisters)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "weakest link"
    }
  ],
  "senses": [
    {
      "categories": [
        "American English",
        "English derogatory terms",
        "English idioms"
      ],
      "examples": [
        {
          "ref": "1964, \"Political Thriller\" (film review of Seven Days in May), Time, Feb. 21",
          "text": "\"Your course of action this past year has bordered on criminal negligence,\" he barks to the man whose job he means to take. \"You're a weak sister, Mr. President.\""
        }
      ],
      "glosses": [
        "A person who is cowardly or indecisive."
      ],
      "links": [
        [
          "derogatory",
          "derogatory"
        ],
        [
          "cowardly",
          "cowardly"
        ],
        [
          "indecisive",
          "indecisive"
        ]
      ],
      "raw_glosses": [
        "(chiefly US, idiomatic, derogatory) A person who is cowardly or indecisive."
      ],
      "tags": [
        "US",
        "derogatory",
        "idiomatic"
      ]
    },
    {
      "categories": [
        "American English",
        "English idioms",
        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "1991 May 20, Larry Reibstein, “A Mexican Miracle?”, in Newsweek",
          "text": "San Antonio has always been viewed as the weak sister of the big regional centers of Houston and Dallas.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A person or thing which is the least robust or least dependable member of a group."
      ],
      "links": [
        [
          "robust",
          "robust"
        ],
        [
          "dependable",
          "dependable"
        ]
      ],
      "raw_glosses": [
        "(chiefly US, idiomatic) A person or thing which is the least robust or least dependable member of a group."
      ],
      "tags": [
        "US",
        "idiomatic"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "En-au-weak sister.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/9/90/En-au-weak_sister.ogg/En-au-weak_sister.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/9/90/En-au-weak_sister.ogg",
      "tags": [
        "Australia"
      ],
      "text": "Audio (AU)"
    }
  ],
  "synonyms": [
    {
      "sense": "least robust of a group",
      "word": "sick man"
    }
  ],
  "word": "weak sister"
}