"fall off the back of a lorry" meaning in English

{
  "forms": [
    {
      "form": "falls off the back of a lorry",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "falling off the back of a lorry",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "fell off the back of a lorry",
      "tags": [
        "past"
      ]
    },
    {
      "form": "fallen off the back of a lorry",
      "tags": [
        "participle",
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "fall<,,fell,fallen> off the back of a lorry"
      },
      "expansion": "fall off the back of a lorry (third-person singular simple present falls off the back of a lorry, present participle falling off the back of a lorry, simple past fell off the back of a lorry, past participle fallen off the back of a lorry)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "British English",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English euphemisms",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Of an item of merchandise, to come into a person's possession without having been paid for; to have been acquired illegally."
      ],
      "id": "en-fall_off_the_back_of_a_lorry-en-verb-lR-ueref",
      "links": [
        [
          "merchandise",
          "merchandise"
        ]
      ],
      "raw_glosses": [
        "(idiomatic, British, euphemistic) Of an item of merchandise, to come into a person's possession without having been paid for; to have been acquired illegally."
      ],
      "synonyms": [
        {
          "english": "US / Australia",
          "word": "fall off a truck"
        }
      ],
      "tags": [
        "British",
        "euphemistic",
        "idiomatic"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "en-au-fall off the back of a lorry.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/e/e1/En-au-fall_off_the_back_of_a_lorry.ogg/En-au-fall_off_the_back_of_a_lorry.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/e/e1/En-au-fall_off_the_back_of_a_lorry.ogg"
    }
  ],
  "word": "fall off the back of a lorry"
}

{
  "forms": [
    {
      "form": "falls off the back of a lorry",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "falling off the back of a lorry",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "fell off the back of a lorry",
      "tags": [
        "past"
      ]
    },
    {
      "form": "fallen off the back of a lorry",
      "tags": [
        "participle",
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "fall<,,fell,fallen> off the back of a lorry"
      },
      "expansion": "fall off the back of a lorry (third-person singular simple present falls off the back of a lorry, present participle falling off the back of a lorry, simple past fell off the back of a lorry, past participle fallen off the back of a lorry)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        "British English",
        "English entries with incorrect language header",
        "English euphemisms",
        "English idioms",
        "English lemmas",
        "English multiword terms",
        "English verbs",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "Of an item of merchandise, to come into a person's possession without having been paid for; to have been acquired illegally."
      ],
      "links": [
        [
          "merchandise",
          "merchandise"
        ]
      ],
      "raw_glosses": [
        "(idiomatic, British, euphemistic) Of an item of merchandise, to come into a person's possession without having been paid for; to have been acquired illegally."
      ],
      "tags": [
        "British",
        "euphemistic",
        "idiomatic"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "en-au-fall off the back of a lorry.ogg",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/e/e1/En-au-fall_off_the_back_of_a_lorry.ogg/En-au-fall_off_the_back_of_a_lorry.ogg.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/e/e1/En-au-fall_off_the_back_of_a_lorry.ogg"
    }
  ],
  "synonyms": [
    {
      "english": "US / Australia",
      "word": "fall off a truck"
    }
  ],
  "word": "fall off the back of a lorry"
}