"nerf bar" meaning in English

{
  "etymology_text": "From nerf (“to bump lightly”).",
  "forms": [
    {
      "form": "nerf bars",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "nerf bar (plural nerf bars)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "langcode": "en",
          "name": "Automotive",
          "orig": "en:Automotive",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "A tubular bumper running below the doors along the side of four-wheeled vehicle, in place of a running board."
      ],
      "id": "en-nerf_bar-en-noun-k-nO0HHL",
      "links": [
        [
          "running board",
          "running board"
        ]
      ],
      "related": [
        {
          "word": "nerf net"
        }
      ]
    }
  ],
  "word": "nerf bar"
}

{
  "etymology_text": "From nerf (“to bump lightly”).",
  "forms": [
    {
      "form": "nerf bars",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "nerf bar (plural nerf bars)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "nerf net"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Automotive"
      ],
      "glosses": [
        "A tubular bumper running below the doors along the side of four-wheeled vehicle, in place of a running board."
      ],
      "links": [
        [
          "running board",
          "running board"
        ]
      ]
    }
  ],
  "word": "nerf bar"
}