"piss like a racehorse" meaning in English

{
  "etymology_text": "An emphatic form of the earlier expression piss like a horse, due to the great volume of urine produced by horses every four hours or so.",
  "forms": [
    {
      "form": "pisses like a racehorse",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "pissing like a racehorse",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "pissed like a racehorse",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "pissed like a racehorse",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "*"
      },
      "expansion": "piss like a racehorse (third-person singular simple present pisses like a racehorse, present participle pissing like a racehorse, simple past and past participle pissed like a racehorse)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "Pull over as soon as you can. I need to piss like a racehorse!"
        }
      ],
      "glosses": [
        "To urinate profusely, especially in reference to a profound need to do so."
      ],
      "hypernyms": [
        {
          "word": "urinate"
        }
      ],
      "id": "en-piss_like_a_racehorse-en-verb-dDWKo9mL",
      "links": [
        [
          "urinate",
          "urinate"
        ],
        [
          "profusely",
          "profusely"
        ],
        [
          "especially",
          "especially"
        ],
        [
          "reference",
          "reference"
        ],
        [
          "profound",
          "profound"
        ],
        [
          "need",
          "need"
        ],
        [
          "do",
          "do"
        ],
        [
          "so",
          "so"
        ]
      ],
      "raw_glosses": [
        "(vulgar, idiomatic) To urinate profusely, especially in reference to a profound need to do so."
      ],
      "related": [
        {
          "word": "horse piss"
        },
        {
          "word": "work like a horse"
        },
        {
          "word": "eat like a horse"
        },
        {
          "english": "to urinate, used of horses and cattle",
          "word": "stale"
        },
        {
          "word": "my back teeth are floating"
        }
      ],
      "synonyms": [
        {
          "word": "piss like a horse"
        },
        {
          "word": "piss like a Russian racehorse"
        }
      ],
      "tags": [
        "idiomatic",
        "vulgar"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "En-au-piss like a racehorse.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/3/30/En-au-piss_like_a_racehorse.ogg/En-au-piss_like_a_racehorse.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/3/30/En-au-piss_like_a_racehorse.ogg",
      "tags": [
        "Australia"
      ],
      "text": "Audio (AU)"
    }
  ],
  "word": "piss like a racehorse"
}

{
  "etymology_text": "An emphatic form of the earlier expression piss like a horse, due to the great volume of urine produced by horses every four hours or so.",
  "forms": [
    {
      "form": "pisses like a racehorse",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "pissing like a racehorse",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "pissed like a racehorse",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "pissed like a racehorse",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "*"
      },
      "expansion": "piss like a racehorse (third-person singular simple present pisses like a racehorse, present participle pissing like a racehorse, simple past and past participle pissed like a racehorse)",
      "name": "en-verb"
    }
  ],
  "hypernyms": [
    {
      "word": "urinate"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "related": [
    {
      "word": "horse piss"
    },
    {
      "word": "work like a horse"
    },
    {
      "word": "eat like a horse"
    },
    {
      "english": "to urinate, used of horses and cattle",
      "word": "stale"
    },
    {
      "word": "my back teeth are floating"
    }
  ],
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English idioms",
        "English lemmas",
        "English multiword terms",
        "English terms with audio links",
        "English verbs",
        "English vulgarities"
      ],
      "examples": [
        {
          "text": "Pull over as soon as you can. I need to piss like a racehorse!"
        }
      ],
      "glosses": [
        "To urinate profusely, especially in reference to a profound need to do so."
      ],
      "links": [
        [
          "urinate",
          "urinate"
        ],
        [
          "profusely",
          "profusely"
        ],
        [
          "especially",
          "especially"
        ],
        [
          "reference",
          "reference"
        ],
        [
          "profound",
          "profound"
        ],
        [
          "need",
          "need"
        ],
        [
          "do",
          "do"
        ],
        [
          "so",
          "so"
        ]
      ],
      "raw_glosses": [
        "(vulgar, idiomatic) To urinate profusely, especially in reference to a profound need to do so."
      ],
      "synonyms": [
        {
          "word": "piss like a horse"
        },
        {
          "word": "piss like a Russian racehorse"
        }
      ],
      "tags": [
        "idiomatic",
        "vulgar"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "En-au-piss like a racehorse.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/3/30/En-au-piss_like_a_racehorse.ogg/En-au-piss_like_a_racehorse.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/3/30/En-au-piss_like_a_racehorse.ogg",
      "tags": [
        "Australia"
      ],
      "text": "Audio (AU)"
    }
  ],
  "word": "piss like a racehorse"
}