"pull a train" meaning in English

{
  "forms": [
    {
      "form": "pulls a train",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "pulling a train",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "pulled a train",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "pulled a train",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "*"
      },
      "expansion": "pull a train (third-person singular simple present pulls a train, present participle pulling a train, simple past and past participle pulled a train)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "coordinate_terms": [
        {
          "_dis1": "100 0",
          "word": "run a train"
        },
        {
          "_dis1": "100 0",
          "word": "tip drill"
        }
      ],
      "glosses": [
        "Used other than figuratively or idiomatically: see pull, train."
      ],
      "id": "en-pull_a_train-en-verb-URA~uDkW",
      "links": [
        [
          "pull",
          "pull#English"
        ],
        [
          "train",
          "train#English"
        ]
      ],
      "related": [
        {
          "_dis1": "100 0",
          "word": "ride the cock carousel"
        }
      ]
    },
    {
      "categories": [
        {
          "_dis": "40 60",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "To have sex with a line of people, one after the other."
      ],
      "id": "en-pull_a_train-en-verb-eIgeKSR2",
      "links": [
        [
          "have sex",
          "have sex"
        ],
        [
          "line",
          "line"
        ],
        [
          "people",
          "people"
        ],
        [
          "one after the other",
          "one after the other"
        ]
      ],
      "raw_glosses": [
        "(slang, vulgar) To have sex with a line of people, one after the other."
      ],
      "tags": [
        "slang",
        "vulgar"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "En-au-pull a train.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/c/cc/En-au-pull_a_train.ogg/En-au-pull_a_train.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/c/cc/En-au-pull_a_train.ogg",
      "tags": [
        "Australia"
      ],
      "text": "Audio (AU)"
    }
  ],
  "word": "pull a train"
}

{
  "categories": [
    "English entries with incorrect language header",
    "English lemmas",
    "English multiword terms",
    "English terms with audio links",
    "English verbs"
  ],
  "coordinate_terms": [
    {
      "word": "run a train"
    },
    {
      "word": "tip drill"
    }
  ],
  "forms": [
    {
      "form": "pulls a train",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "pulling a train",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "pulled a train",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "pulled a train",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "*"
      },
      "expansion": "pull a train (third-person singular simple present pulls a train, present participle pulling a train, simple past and past participle pulled a train)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "related": [
    {
      "word": "ride the cock carousel"
    }
  ],
  "senses": [
    {
      "glosses": [
        "Used other than figuratively or idiomatically: see pull, train."
      ],
      "links": [
        [
          "pull",
          "pull#English"
        ],
        [
          "train",
          "train#English"
        ]
      ]
    },
    {
      "categories": [
        "English slang",
        "English vulgarities"
      ],
      "glosses": [
        "To have sex with a line of people, one after the other."
      ],
      "links": [
        [
          "have sex",
          "have sex"
        ],
        [
          "line",
          "line"
        ],
        [
          "people",
          "people"
        ],
        [
          "one after the other",
          "one after the other"
        ]
      ],
      "raw_glosses": [
        "(slang, vulgar) To have sex with a line of people, one after the other."
      ],
      "tags": [
        "slang",
        "vulgar"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "En-au-pull a train.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/c/cc/En-au-pull_a_train.ogg/En-au-pull_a_train.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/c/cc/En-au-pull_a_train.ogg",
      "tags": [
        "Australia"
      ],
      "text": "Audio (AU)"
    }
  ],
  "word": "pull a train"
}