"shot in one's locker" meaning in English

{
  "forms": [
    {
      "form": "shots in one's locker",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "shots in one's locker"
      },
      "expansion": "shot in one's locker (plural shots in one's locker)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "shot in the locker"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1881–1882, Robert Louis Stevenson, Treasure Island, London; Paris: Cassell & Company, published 14 November 1883, →OCLC:",
          "text": "“Well, let ’em come, lad — let ’em come,” said Silver cheerily. “I’ve still a shot in my locker.”",
          "type": "quote"
        }
      ],
      "glosses": [
        "Alternative form of shot in the locker"
      ],
      "id": "en-shot_in_one's_locker-en-noun-Bfx2uNm9",
      "links": [
        [
          "shot in the locker",
          "shot in the locker#English"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative"
      ]
    }
  ],
  "word": "shot in one's locker"
}

{
  "forms": [
    {
      "form": "shots in one's locker",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "shots in one's locker"
      },
      "expansion": "shot in one's locker (plural shots in one's locker)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "shot in the locker"
        }
      ],
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with quotations",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "ref": "1881–1882, Robert Louis Stevenson, Treasure Island, London; Paris: Cassell & Company, published 14 November 1883, →OCLC:",
          "text": "“Well, let ’em come, lad — let ’em come,” said Silver cheerily. “I’ve still a shot in my locker.”",
          "type": "quote"
        }
      ],
      "glosses": [
        "Alternative form of shot in the locker"
      ],
      "links": [
        [
          "shot in the locker",
          "shot in the locker#English"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative"
      ]
    }
  ],
  "word": "shot in one's locker"
}