"avoir été bercé trop près du mur" meaning in French

{
  "etymology_templates": [
    {
      "args": {
        "1": "to have been cradled too close to the wall"
      },
      "expansion": "“to have been cradled too close to the wall”",
      "name": "m-g"
    },
    {
      "args": {
        "1": "to have been cradled too close to the wall"
      },
      "expansion": "Literally, “to have been cradled too close to the wall”",
      "name": "lit"
    }
  ],
  "etymology_text": "Literally, “to have been cradled too close to the wall”, with the implication that one's head has been banged repeatedly against it, causing mental impairment.",
  "head_templates": [
    {
      "args": {},
      "expansion": "avoir été bercé trop près du mur",
      "name": "fr-verb"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "French entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "to be simple-minded, to be dim-witted, to be stupid"
      ],
      "id": "en-avoir_été_bercé_trop_près_du_mur-fr-verb-VICkTNa~",
      "links": [
        [
          "simple-minded",
          "simple-minded"
        ],
        [
          "dim-witted",
          "dim-witted"
        ],
        [
          "stupid",
          "stupid"
        ]
      ],
      "raw_glosses": [
        "(informal, figuratively) to be simple-minded, to be dim-witted, to be stupid"
      ],
      "related": [
        {
          "word": "ne pas avoir inventé l’eau chaude"
        }
      ],
      "tags": [
        "figuratively",
        "informal"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/a.vwaʁ e.te bɛʁ.se tʁo pʁɛ dy myʁ/"
    },
    {
      "audio": "LL-Q150 (fra)-LoquaxFR-avoir été bercé trop près du mur.wav",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/d/d2/LL-Q150_%28fra%29-LoquaxFR-avoir_%C3%A9t%C3%A9_berc%C3%A9_trop_pr%C3%A8s_du_mur.wav/LL-Q150_%28fra%29-LoquaxFR-avoir_%C3%A9t%C3%A9_berc%C3%A9_trop_pr%C3%A8s_du_mur.wav.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/d/d2/LL-Q150_%28fra%29-LoquaxFR-avoir_%C3%A9t%C3%A9_berc%C3%A9_trop_pr%C3%A8s_du_mur.wav/LL-Q150_%28fra%29-LoquaxFR-avoir_%C3%A9t%C3%A9_berc%C3%A9_trop_pr%C3%A8s_du_mur.wav.ogg",
      "text": "Audio"
    }
  ],
  "word": "avoir été bercé trop près du mur"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "to have been cradled too close to the wall"
      },
      "expansion": "“to have been cradled too close to the wall”",
      "name": "m-g"
    },
    {
      "args": {
        "1": "to have been cradled too close to the wall"
      },
      "expansion": "Literally, “to have been cradled too close to the wall”",
      "name": "lit"
    }
  ],
  "etymology_text": "Literally, “to have been cradled too close to the wall”, with the implication that one's head has been banged repeatedly against it, causing mental impairment.",
  "head_templates": [
    {
      "args": {},
      "expansion": "avoir été bercé trop près du mur",
      "name": "fr-verb"
    }
  ],
  "lang": "French",
  "lang_code": "fr",
  "pos": "verb",
  "related": [
    {
      "word": "ne pas avoir inventé l’eau chaude"
    }
  ],
  "senses": [
    {
      "categories": [
        "French entries with incorrect language header",
        "French informal terms",
        "French lemmas",
        "French multiword terms",
        "French terms with IPA pronunciation",
        "French terms with audio links",
        "French verbs"
      ],
      "glosses": [
        "to be simple-minded, to be dim-witted, to be stupid"
      ],
      "links": [
        [
          "simple-minded",
          "simple-minded"
        ],
        [
          "dim-witted",
          "dim-witted"
        ],
        [
          "stupid",
          "stupid"
        ]
      ],
      "raw_glosses": [
        "(informal, figuratively) to be simple-minded, to be dim-witted, to be stupid"
      ],
      "tags": [
        "figuratively",
        "informal"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/a.vwaʁ e.te bɛʁ.se tʁo pʁɛ dy myʁ/"
    },
    {
      "audio": "LL-Q150 (fra)-LoquaxFR-avoir été bercé trop près du mur.wav",
      "mp3_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/d/d2/LL-Q150_%28fra%29-LoquaxFR-avoir_%C3%A9t%C3%A9_berc%C3%A9_trop_pr%C3%A8s_du_mur.wav/LL-Q150_%28fra%29-LoquaxFR-avoir_%C3%A9t%C3%A9_berc%C3%A9_trop_pr%C3%A8s_du_mur.wav.mp3",
      "ogg_url": "https://upload.wikimedia.org/wikipedia/commons/transcoded/d/d2/LL-Q150_%28fra%29-LoquaxFR-avoir_%C3%A9t%C3%A9_berc%C3%A9_trop_pr%C3%A8s_du_mur.wav/LL-Q150_%28fra%29-LoquaxFR-avoir_%C3%A9t%C3%A9_berc%C3%A9_trop_pr%C3%A8s_du_mur.wav.ogg",
      "text": "Audio"
    }
  ],
  "word": "avoir été bercé trop près du mur"
}