"pull the other one, it's got bells on" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "pull someone's leg"
      },
      "expansion": "pull someone's leg",
      "name": "m"
    }
  ],
  "etymology_text": "As an extension of the phrase pull someone's leg—now that you've pulled one leg, pull the other one.",
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "phrase"
      },
      "expansion": "pull the other one, it's got bells on",
      "name": "head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "phrase",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "British English",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
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            "Entries with incorrect language header",
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      ],
      "examples": [
        {
          "text": "Is he going to study integrals? Pull the other one, it's got bells on—he can't even do basic multiplication.",
          "type": "example"
        }
      ],
      "glosses": [
        "Expresses disbelief."
      ],
      "id": "en-pull_the_other_one,_it's_got_bells_on-en-phrase-VZ8g16l1",
      "links": [
        [
          "humorous",
          "humorous"
        ],
        [
          "disbelief",
          "disbelief#English"
        ]
      ],
      "raw_glosses": [
        "(UK, idiomatic, humorous) Expresses disbelief."
      ],
      "related": [
        {
          "word": "pull my finger"
        },
        {
          "word": "pulling my leg"
        },
        {
          "word": "with bells on"
        }
      ],
      "synonyms": [
        {
          "word": "pull the other leg"
        },
        {
          "word": "bullshit"
        },
        {
          "word": "pull the other one"
        },
        {
          "word": "pull the other one, it's got brass bells on"
        }
      ],
      "tags": [
        "UK",
        "humorous",
        "idiomatic"
      ]
    }
  ],
  "word": "pull the other one, it's got bells on"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "pull someone's leg"
      },
      "expansion": "pull someone's leg",
      "name": "m"
    }
  ],
  "etymology_text": "As an extension of the phrase pull someone's leg—now that you've pulled one leg, pull the other one.",
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "phrase"
      },
      "expansion": "pull the other one, it's got bells on",
      "name": "head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "phrase",
  "related": [
    {
      "word": "pull my finger"
    },
    {
      "word": "pulling my leg"
    },
    {
      "word": "with bells on"
    }
  ],
  "senses": [
    {
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        "British English",
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      "examples": [
        {
          "text": "Is he going to study integrals? Pull the other one, it's got bells on—he can't even do basic multiplication.",
          "type": "example"
        }
      ],
      "glosses": [
        "Expresses disbelief."
      ],
      "links": [
        [
          "humorous",
          "humorous"
        ],
        [
          "disbelief",
          "disbelief#English"
        ]
      ],
      "raw_glosses": [
        "(UK, idiomatic, humorous) Expresses disbelief."
      ],
      "tags": [
        "UK",
        "humorous",
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  ],
  "synonyms": [
    {
      "word": "pull the other leg"
    },
    {
      "word": "bullshit"
    },
    {
      "word": "pull the other one"
    },
    {
      "word": "pull the other one, it's got brass bells on"
    }
  ],
  "word": "pull the other one, it's got bells on"
}