"practical joker" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "practical joke",
        "3": "er"
      },
      "expansion": "practical joke + -er",
      "name": "suffix"
    }
  ],
  "etymology_text": "practical joke + -er",
  "forms": [
    {
      "form": "practical jokers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "practical joker (plural practical jokers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
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          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms suffixed with -er",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "December 7 2022, Simon Shuster, “2022 Person of the Year: Volodymyr Zelensky”, in Time",
          "text": "Some of his allies miss the old Zelensky, the practical joker with the boyish smile. But they realize he needs to be different now, much harder and deaf to distractions, or else his country might not survive.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "someone who instigates practical jokes"
      ],
      "id": "en-practical_joker-en-noun-0oQnSkmg",
      "links": [
        [
          "instigate",
          "instigate"
        ],
        [
          "practical joke",
          "practical joke"
        ]
      ],
      "translations": [
        {
          "code": "la",
          "lang": "Latin",
          "sense": "someone who instigates practical jokes",
          "tags": [
            "masculine"
          ],
          "word": "trīcō"
        }
      ]
    }
  ],
  "word": "practical joker"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "practical joke",
        "3": "er"
      },
      "expansion": "practical joke + -er",
      "name": "suffix"
    }
  ],
  "etymology_text": "practical joke + -er",
  "forms": [
    {
      "form": "practical jokers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "practical joker (plural practical jokers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms suffixed with -er",
        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "December 7 2022, Simon Shuster, “2022 Person of the Year: Volodymyr Zelensky”, in Time",
          "text": "Some of his allies miss the old Zelensky, the practical joker with the boyish smile. But they realize he needs to be different now, much harder and deaf to distractions, or else his country might not survive.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "someone who instigates practical jokes"
      ],
      "links": [
        [
          "instigate",
          "instigate"
        ],
        [
          "practical joke",
          "practical joke"
        ]
      ]
    }
  ],
  "translations": [
    {
      "code": "la",
      "lang": "Latin",
      "sense": "someone who instigates practical jokes",
      "tags": [
        "masculine"
      ],
      "word": "trīcō"
    }
  ],
  "word": "practical joker"
}