"cost an arm and a leg" meaning in Anglais

{
  "categories": [
    {
      "kind": "other",
      "name": "Compositions en anglais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Expressions en anglais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Locutions verbales en anglais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Anglais",
      "orig": "anglais",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "Composé de cost, arm et leg."
  ],
  "lang": "Anglais",
  "lang_code": "en",
  "pos": "verb",
  "pos_title": "Locution verbale",
  "raw_tags": [
    "se conjugue : → voir la conjugaison de cost"
  ],
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Exemples en anglais",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Exemples en anglais à traduire",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Hyperboles en anglais",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Métaphores en anglais",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "It cost me an arm and a leg, but I bought it anyway."
        }
      ],
      "glosses": [
        "Coûter les yeux de la tête."
      ],
      "id": "fr-cost_an_arm_and_a_leg-en-verb-ovrAG7IU",
      "tags": [
        "figuratively",
        "hyperbole",
        "idiomatic"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\kɔst ən ɑː(ɹ)m æn(d) ə lɛɡ\\"
    }
  ],
  "word": "cost an arm and a leg"
}

{
  "categories": [
    "Compositions en anglais",
    "Expressions en anglais",
    "Locutions verbales en anglais",
    "anglais"
  ],
  "etymology_texts": [
    "Composé de cost, arm et leg."
  ],
  "lang": "Anglais",
  "lang_code": "en",
  "pos": "verb",
  "pos_title": "Locution verbale",
  "raw_tags": [
    "se conjugue : → voir la conjugaison de cost"
  ],
  "senses": [
    {
      "categories": [
        "Exemples en anglais",
        "Exemples en anglais à traduire",
        "Hyperboles en anglais",
        "Métaphores en anglais"
      ],
      "examples": [
        {
          "text": "It cost me an arm and a leg, but I bought it anyway."
        }
      ],
      "glosses": [
        "Coûter les yeux de la tête."
      ],
      "tags": [
        "figuratively",
        "hyperbole",
        "idiomatic"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\kɔst ən ɑː(ɹ)m æn(d) ə lɛɡ\\"
    }
  ],
  "word": "cost an arm and a leg"
}