"giver-upper" meaning in English

{
  "forms": [
    {
      "form": "giver-uppers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "giver-upper (plural giver-uppers)",
      "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"
        }
      ],
      "glosses": [
        "Someone who or something that gives up: synonym of quitter."
      ],
      "id": "en-giver-upper-en-noun-fRhyhnEA",
      "links": [
        [
          "humorous",
          "humorous"
        ],
        [
          "gives up",
          "give up"
        ],
        [
          "quitter",
          "quitter#English"
        ]
      ],
      "raw_glosses": [
        "(informal, humorous) Someone who or something that gives up: synonym of quitter."
      ],
      "tags": [
        "humorous",
        "informal"
      ]
    }
  ],
  "word": "giver-upper"
}

{
  "forms": [
    {
      "form": "giver-uppers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "giver-upper (plural giver-uppers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English humorous terms",
        "English informal terms",
        "English lemmas",
        "English multiword terms",
        "English nouns"
      ],
      "glosses": [
        "Someone who or something that gives up: synonym of quitter."
      ],
      "links": [
        [
          "humorous",
          "humorous"
        ],
        [
          "gives up",
          "give up"
        ],
        [
          "quitter",
          "quitter#English"
        ]
      ],
      "raw_glosses": [
        "(informal, humorous) Someone who or something that gives up: synonym of quitter."
      ],
      "tags": [
        "humorous",
        "informal"
      ]
    }
  ],
  "word": "giver-upper"
}