"rocktastic" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "rock",
        "3": "-tastic"
      },
      "expansion": "rock + -tastic",
      "name": "af"
    }
  ],
  "etymology_text": "From rock + -tastic.",
  "forms": [
    {
      "form": "more rocktastic",
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "most rocktastic",
      "tags": [
        "superlative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "rocktastic (comparative more rocktastic, superlative most rocktastic)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms suffixed with -tastic",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Music",
          "orig": "en:Music",
          "parents": [
            "Art",
            "Sound",
            "Culture",
            "Energy",
            "Society",
            "Nature",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2007, Olivia Edward, Genevieve Cortinovis, James Eggleton, Youyoung Lee, Ashley Hermitage, MTV England, Hoboken, NJ: Wiley Publishing, Inc., →ISBN, page 171:",
          "text": "Music-wise, the biggest event in the Thames Valley area is definitely the rocktastic 3-dayer known as Reading Festival, but if huge isn't your thing try the Truck Nine Festival in Abingdon or catch part of the upper-class English summer season—watching the rowing, champers in hand, at the Henley Regatta.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Fantastic or excellent in the context of rock music."
      ],
      "id": "en-rocktastic-en-adj-TmMokwGf",
      "links": [
        [
          "Fantastic",
          "fantastic"
        ],
        [
          "excellent",
          "excellent"
        ],
        [
          "rock music",
          "rock music"
        ]
      ],
      "raw_glosses": [
        "(informal) Fantastic or excellent in the context of rock music."
      ],
      "tags": [
        "informal"
      ]
    }
  ],
  "word": "rocktastic"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "rock",
        "3": "-tastic"
      },
      "expansion": "rock + -tastic",
      "name": "af"
    }
  ],
  "etymology_text": "From rock + -tastic.",
  "forms": [
    {
      "form": "more rocktastic",
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "most rocktastic",
      "tags": [
        "superlative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "rocktastic (comparative more rocktastic, superlative most rocktastic)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "English adjectives",
        "English entries with incorrect language header",
        "English informal terms",
        "English lemmas",
        "English terms suffixed with -tastic",
        "English terms with quotations",
        "Pages with 1 entry",
        "en:Music"
      ],
      "examples": [
        {
          "ref": "2007, Olivia Edward, Genevieve Cortinovis, James Eggleton, Youyoung Lee, Ashley Hermitage, MTV England, Hoboken, NJ: Wiley Publishing, Inc., →ISBN, page 171:",
          "text": "Music-wise, the biggest event in the Thames Valley area is definitely the rocktastic 3-dayer known as Reading Festival, but if huge isn't your thing try the Truck Nine Festival in Abingdon or catch part of the upper-class English summer season—watching the rowing, champers in hand, at the Henley Regatta.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Fantastic or excellent in the context of rock music."
      ],
      "links": [
        [
          "Fantastic",
          "fantastic"
        ],
        [
          "excellent",
          "excellent"
        ],
        [
          "rock music",
          "rock music"
        ]
      ],
      "raw_glosses": [
        "(informal) Fantastic or excellent in the context of rock music."
      ],
      "tags": [
        "informal"
      ]
    }
  ],
  "word": "rocktastic"
}