Top definition
Something so awesome that only something Oasis-related can describe it. Invented by Noel Gallagher himself, it is a word that all true Oasis fans use on a day-to-day basis. Do not confuse with the commonly used adjective "chris-tastic".
Oh my god Claire, look at that girl's new champagne supernova. Isn't it so wonderwalltastic!?
by The Real Noel Gallagher December 27, 2009
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