"ママチャリ" meaning in 日语

{
  "categories": [
    {
      "kind": "other",
      "name": "帶「チャ」的日語詞",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "日語名詞",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "日語片假名",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "日語複合詞",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "日語詞元",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "有1個詞條的頁面",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_text": "由ママ (mama, “妈妈”) + チャリ (chari, “自行车”)构成的复合词，因为年轻母亲经常使用这种自行车，常在后座上放小孩。",
  "forms": [
    {
      "form": "mamachari",
      "tags": [
        "romanization"
      ]
    }
  ],
  "lang": "日语",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "日語俚語",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "女士自行车，一种带前置物篮和后座的常见自行车"
      ],
      "id": "zh-ママチャリ-ja-noun-nsknZ2CH",
      "tags": [
        "slang"
      ]
    }
  ],
  "word": "ママチャリ"
}

{
  "categories": [
    "帶「チャ」的日語詞",
    "日語名詞",
    "日語片假名",
    "日語複合詞",
    "日語詞元",
    "有1個詞條的頁面"
  ],
  "etymology_text": "由ママ (mama, “妈妈”) + チャリ (chari, “自行车”)构成的复合词，因为年轻母亲经常使用这种自行车，常在后座上放小孩。",
  "forms": [
    {
      "form": "mamachari",
      "tags": [
        "romanization"
      ]
    }
  ],
  "lang": "日语",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "日語俚語"
      ],
      "glosses": [
        "女士自行车，一种带前置物篮和后座的常见自行车"
      ],
      "tags": [
        "slang"
      ]
    }
  ],
  "word": "ママチャリ"
}