"my back teeth are floating" meaning in English

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        "2": "avoir les dents du fond qui baignent"
      },
      "expansion": "French avoir les dents du fond qui baignent",
      "name": "cog"
    }
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  "etymology_text": "Compare French avoir les dents du fond qui baignent, albeit with a different meaning.",
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  "lang": "English",
  "lang_code": "en",
  "pos": "phrase",
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          "text": "Where's the restroom? My back teeth are floating!",
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      "glosses": [
        "I have a strong need to urinate."
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        "(informal, slang) I have a strong need to urinate."
      ],
      "related": [
        {
          "word": "piss like a racehorse"
        }
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      "synonyms": [
        {
          "word": "my teeth are floating"
        }
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      "args": {
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        "2": "avoir les dents du fond qui baignent"
      },
      "expansion": "French avoir les dents du fond qui baignent",
      "name": "cog"
    }
  ],
  "etymology_text": "Compare French avoir les dents du fond qui baignent, albeit with a different meaning.",
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  "lang_code": "en",
  "pos": "phrase",
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      "word": "piss like a racehorse"
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          "text": "Where's the restroom? My back teeth are floating!",
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      "glosses": [
        "I have a strong need to urinate."
      ],
      "links": [
        [
          "urinate",
          "urinate"
        ]
      ],
      "raw_glosses": [
        "(informal, slang) I have a strong need to urinate."
      ],
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        {
          "word": "my teeth are floating"
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        "informal",
        "slang"
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  "word": "my back teeth are floating"
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