"tight as a drum" meaning in English

{
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "tight as a drum (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English similes",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2019 August 15, Bob Stanley, “'Groovy, groovy, groovy': listening to Woodstock 50 years on – all 38 discs”, in The Guardian:",
          "text": "Sly and the Family Stone sound entirely futuristic – like everyone else they have malfunctioning gear, but they “hurry up and play to avoid hanging you up”. Bang! Straight into Sing a Simple Song. Tight as a drum. Everyday People, a No 1 hit just a few weeks earlier, is a festival high point.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Completely tight."
      ],
      "id": "en-tight_as_a_drum-en-adj-et4LMQUL",
      "links": [
        [
          "tight",
          "tight"
        ]
      ],
      "qualifier": "simile",
      "raw_glosses": [
        "(simile) Completely tight."
      ],
      "tags": [
        "not-comparable"
      ]
    },
    {
      "categories": [
        {
          "_dis": "10 90",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "0 100",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "0 100",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "examples": [
        {
          "text": "This boat is tight as a drum.",
          "type": "example"
        }
      ],
      "glosses": [
        "Wholly free from leaks, cracks, etc."
      ],
      "id": "en-tight_as_a_drum-en-adj-cDbtHpYR",
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "word": "tight as a drum"
}

{
  "categories": [
    "English adjectives",
    "English entries with incorrect language header",
    "English lemmas",
    "English multiword terms",
    "English uncomparable adjectives",
    "Pages with 1 entry",
    "Pages with entries"
  ],
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "tight as a drum (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "English similes",
        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "2019 August 15, Bob Stanley, “'Groovy, groovy, groovy': listening to Woodstock 50 years on – all 38 discs”, in The Guardian:",
          "text": "Sly and the Family Stone sound entirely futuristic – like everyone else they have malfunctioning gear, but they “hurry up and play to avoid hanging you up”. Bang! Straight into Sing a Simple Song. Tight as a drum. Everyday People, a No 1 hit just a few weeks earlier, is a festival high point.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Completely tight."
      ],
      "links": [
        [
          "tight",
          "tight"
        ]
      ],
      "qualifier": "simile",
      "raw_glosses": [
        "(simile) Completely tight."
      ],
      "tags": [
        "not-comparable"
      ]
    },
    {
      "categories": [
        "English terms with usage examples"
      ],
      "examples": [
        {
          "text": "This boat is tight as a drum.",
          "type": "example"
        }
      ],
      "glosses": [
        "Wholly free from leaks, cracks, etc."
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "word": "tight as a drum"
}