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2.
Something that is unmatched; a mix between spectacular and fantastic
Adam knew his sweater collection was truly spectastic!!!!!!
by Sweater Admirer September 11, 2012
 
1.
Something of deep quality that deserves credit of being both spectacular and fantastic thus 'Spectastic'
Football 'soccer' commentator: That goal by Steven Gerrard was spectacular and yet fantastic at the very same time infact it was spectastic.

Me: Have you seen Megan Fox in the new Transformers trailer?
Friend: No?
Me: She's looking pretty spectastic in it, to be fair.
Friend: Sweet.
by Stekop1 March 17, 2009