combination of trip and fantastic, meaning trippy to the maximum awesomeness.
Madison: Dude, those shrooms were triptastic!

Chrisie: I know, brah!
by Madi sonn. December 31, 2009
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adj.a) used to describe something so wonderful b) thursday night sex(used as noun)
1)Dude Kristin's ass is triptastic!!
2) Me and kristin had triptastic!
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