"ペン回し" meaning in Japanese

{
  "forms": [
    {
      "form": "ペン回し",
      "ruby": [
        [
          "回",
          "まわ"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "penmawashi",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ペンまわし"
      },
      "expansion": "ペン回(まわ)し • (penmawashi)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Japanese entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese links with redundant wikilinks",
          "parents": [
            "Links with redundant wikilinks",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with redundant sortkeys",
          "parents": [
            "Terms with redundant sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "pen spinning"
      ],
      "id": "en-ペン回し-ja-noun-HYUWZjR1",
      "links": [
        [
          "pen spinning",
          "pen spinning"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[pẽ̞mːa̠ɰᵝa̠ɕi]"
    }
  ],
  "word": "ペン回し"
}

{
  "forms": [
    {
      "form": "ペン回し",
      "ruby": [
        [
          "回",
          "まわ"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "penmawashi",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ペンまわし"
      },
      "expansion": "ペン回(まわ)し • (penmawashi)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Japanese entries with incorrect language header",
        "Japanese lemmas",
        "Japanese links with redundant wikilinks",
        "Japanese nouns",
        "Japanese terms spelled with mixed kana",
        "Japanese terms spelled with second grade kanji",
        "Japanese terms with IPA pronunciation",
        "Japanese terms with redundant sortkeys",
        "Japanese terms written with one Han script character"
      ],
      "glosses": [
        "pen spinning"
      ],
      "links": [
        [
          "pen spinning",
          "pen spinning"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[pẽ̞mːa̠ɰᵝa̠ɕi]"
    }
  ],
  "word": "ペン回し"
}

{
  "called_from": "parser/1336",
  "msg": "no corresponding start tag found for </span>",
  "path": [
    "ペン回し"
  ],
  "section": "Japanese",
  "subsection": "noun",
  "title": "ペン回し",
  "trace": ""
}