"plas" meaning in Spanish

{
  "derived": [
    {
      "_dis1": "0 0",
      "word": "plis plas"
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "es",
        "2": "interjection"
      },
      "expansion": "plas",
      "name": "head"
    }
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "intj",
  "senses": [
    {
      "glosses": [
        "wham!, whack!"
      ],
      "id": "en-plas-es-intj-dltOlYfw",
      "links": [
        [
          "wham",
          "wham"
        ],
        [
          "whack",
          "whack"
        ]
      ],
      "synonyms": [
        {
          "word": "plaf"
        }
      ]
    },
    {
      "categories": [
        {
          "_dis": "15 85",
          "kind": "other",
          "name": "Spanish entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "down! (command given to a dog or other kind of pet)"
      ],
      "id": "en-plas-es-intj-5Gb5WhGB",
      "links": [
        [
          "down",
          "down"
        ]
      ]
    }
  ],
  "word": "plas"
}

{
  "categories": [
    "Spanish entries with incorrect language header",
    "Spanish interjections",
    "Spanish lemmas",
    "White Hmong classifiers",
    "White Hmong entries with incorrect language header",
    "White Hmong lemmas",
    "White Hmong terms with IPA pronunciation"
  ],
  "derived": [
    {
      "word": "plis plas"
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "es",
        "2": "interjection"
      },
      "expansion": "plas",
      "name": "head"
    }
  ],
  "lang": "Spanish",
  "lang_code": "es",
  "pos": "intj",
  "senses": [
    {
      "glosses": [
        "wham!, whack!"
      ],
      "links": [
        [
          "wham",
          "wham"
        ],
        [
          "whack",
          "whack"
        ]
      ],
      "synonyms": [
        {
          "word": "plaf"
        }
      ]
    },
    {
      "glosses": [
        "down! (command given to a dog or other kind of pet)"
      ],
      "links": [
        [
          "down",
          "down"
        ]
      ]
    }
  ],
  "word": "plas"
}