"swear jar" meaning in English

{
  "forms": [
    {
      "form": "swear jars",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "swear jar (plural swear jars)",
      "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"
        }
      ],
      "examples": [
        {
          "ref": "2007, Bud Light: Swear Jar",
          "text": "What's that?\nThat's a Swear Jar, every time someone swears you put a quarter in it.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A jar into which anybody who utters a profanity is obliged to drop some money."
      ],
      "id": "en-swear_jar-en-noun-Lu6Hj6cR",
      "links": [
        [
          "jar",
          "jar"
        ],
        [
          "profanity",
          "profanity"
        ],
        [
          "money",
          "money"
        ]
      ]
    }
  ],
  "word": "swear jar"
}

{
  "forms": [
    {
      "form": "swear jars",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "swear jar (plural swear jars)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "2007, Bud Light: Swear Jar",
          "text": "What's that?\nThat's a Swear Jar, every time someone swears you put a quarter in it.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A jar into which anybody who utters a profanity is obliged to drop some money."
      ],
      "links": [
        [
          "jar",
          "jar"
        ],
        [
          "profanity",
          "profanity"
        ],
        [
          "money",
          "money"
        ]
      ]
    }
  ],
  "word": "swear jar"
}