"flash for cash" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "cash"
      },
      "expansion": "cash",
      "name": "m"
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  ],
  "etymology_text": "* From the UK practice of flashing lights at another car to indicate they can proceed, + cash.\n* From the flash of the camera's light.",
  "head_templates": [
    {
      "args": {
        "1": "-"
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      "expansion": "flash for cash (not comparable)",
      "name": "en-adj"
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  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
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    {
      "categories": [
        {
          "kind": "other",
          "name": "British English",
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      "glosses": [
        "pertaining to a scam where a motorist flashes their headlights to indicate to another driver to proceed against normal give-way rules, then runs in to them and sues for damages."
      ],
      "id": "en-flash_for_cash-en-adj-4v0sBaSn",
      "raw_glosses": [
        "(UK, informal) pertaining to a scam where a motorist flashes their headlights to indicate to another driver to proceed against normal give-way rules, then runs in to them and sues for damages."
      ],
      "related": [
        {
          "_dis1": "100 0",
          "word": "flash the cash"
        }
      ],
      "tags": [
        "UK",
        "informal",
        "not-comparable"
      ]
    },
    {
      "categories": [
        {
          "kind": "other",
          "name": "Australian English",
          "parents": [],
          "source": "w"
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          "_dis": "29 71",
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          "_dis": "31 69",
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          "_dis": "32 68",
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      ],
      "glosses": [
        "pertaining to speed cameras."
      ],
      "id": "en-flash_for_cash-en-adj--KxhFLqH",
      "raw_glosses": [
        "(Australia, informal) pertaining to speed cameras."
      ],
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        "informal",
        "not-comparable"
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    {
      "audio": "EN-AU ck1 flash for cash.ogg",
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      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/c/c6/EN-AU_ck1_flash_for_cash.ogg",
      "tags": [
        "Australia"
      ],
      "text": "Audio (AU)"
    }
  ],
  "word": "flash for cash"
}

{
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    "English entries with incorrect language header",
    "English entries with language name categories using raw markup",
    "English lemmas",
    "English multiword terms",
    "English rhyming phrases",
    "English terms with audio links",
    "English terms with non-redundant non-automated sortkeys",
    "English uncomparable adjectives"
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  "etymology_templates": [
    {
      "args": {
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        "2": "cash"
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      "expansion": "cash",
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  ],
  "etymology_text": "* From the UK practice of flashing lights at another car to indicate they can proceed, + cash.\n* From the flash of the camera's light.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "flash for cash (not comparable)",
      "name": "en-adj"
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  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "related": [
    {
      "word": "flash the cash"
    }
  ],
  "senses": [
    {
      "categories": [
        "British English",
        "English informal terms"
      ],
      "glosses": [
        "pertaining to a scam where a motorist flashes their headlights to indicate to another driver to proceed against normal give-way rules, then runs in to them and sues for damages."
      ],
      "raw_glosses": [
        "(UK, informal) pertaining to a scam where a motorist flashes their headlights to indicate to another driver to proceed against normal give-way rules, then runs in to them and sues for damages."
      ],
      "tags": [
        "UK",
        "informal",
        "not-comparable"
      ]
    },
    {
      "categories": [
        "Australian English",
        "English informal terms"
      ],
      "glosses": [
        "pertaining to speed cameras."
      ],
      "raw_glosses": [
        "(Australia, informal) pertaining to speed cameras."
      ],
      "tags": [
        "Australia",
        "informal",
        "not-comparable"
      ]
    }
  ],
  "sounds": [
    {
      "audio": "EN-AU ck1 flash for cash.ogg",
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      "tags": [
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  "word": "flash for cash"
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