"let one's hair down" meaning in English

{
  "forms": [
    {
      "form": "lets one's hair down",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "letting one's hair down",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "let one's hair down",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "let one's hair down",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "let<,,let> one's hair down"
      },
      "expansion": "let one's hair down (third-person singular simple present lets one's hair down, present participle letting one's hair down, simple past and past participle let one's hair down)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Hair",
          "orig": "en:Hair",
          "parents": [
            "Body parts",
            "Body",
            "Anatomy",
            "Human",
            "Biology",
            "Medicine",
            "All topics",
            "Sciences",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1962, Roy Bennett, Sid Tepper (lyrics and music), “Relax”, performed by Elvis Presley",
          "text": "Cut loose, let your hair down honey / Unwind, turn the lights down low / Relax, let's uncork the stopper / Come to papa, come on let's go",
          "type": "quotation"
        },
        {
          "ref": "1982, George Jackson (lyrics and music), “Down Home Blues”, performed by Z. Z. Hill",
          "text": "All week long I've been keepin' my cool / But tonight I'm gonna let my hair down / And get down with these down home blues",
          "type": "quotation"
        }
      ],
      "glosses": [
        "To relax and enjoy oneself."
      ],
      "id": "en-let_one's_hair_down-en-verb-PuXQVnog",
      "links": [
        [
          "relax",
          "relax"
        ],
        [
          "enjoy oneself",
          "enjoy oneself"
        ]
      ],
      "raw_glosses": [
        "(idiomatic) To relax and enjoy oneself."
      ],
      "related": [
        {
          "word": "put one's feet up"
        }
      ],
      "tags": [
        "idiomatic"
      ]
    }
  ],
  "word": "let one's hair down"
}

{
  "forms": [
    {
      "form": "lets one's hair down",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "letting one's hair down",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "let one's hair down",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "let one's hair down",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "let<,,let> one's hair down"
      },
      "expansion": "let one's hair down (third-person singular simple present lets one's hair down, present participle letting one's hair down, simple past and past participle let one's hair down)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "related": [
    {
      "word": "put one's feet up"
    }
  ],
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English entries with topic categories using raw markup",
        "English idioms",
        "English lemmas",
        "English multiword terms",
        "English terms with non-redundant non-automated sortkeys",
        "English terms with quotations",
        "English verbs",
        "en:Hair"
      ],
      "examples": [
        {
          "ref": "1962, Roy Bennett, Sid Tepper (lyrics and music), “Relax”, performed by Elvis Presley",
          "text": "Cut loose, let your hair down honey / Unwind, turn the lights down low / Relax, let's uncork the stopper / Come to papa, come on let's go",
          "type": "quotation"
        },
        {
          "ref": "1982, George Jackson (lyrics and music), “Down Home Blues”, performed by Z. Z. Hill",
          "text": "All week long I've been keepin' my cool / But tonight I'm gonna let my hair down / And get down with these down home blues",
          "type": "quotation"
        }
      ],
      "glosses": [
        "To relax and enjoy oneself."
      ],
      "links": [
        [
          "relax",
          "relax"
        ],
        [
          "enjoy oneself",
          "enjoy oneself"
        ]
      ],
      "raw_glosses": [
        "(idiomatic) To relax and enjoy oneself."
      ],
      "tags": [
        "idiomatic"
      ]
    }
  ],
  "word": "let one's hair down"
}