Top Definition
Adj. Sarcastic reference to fantastic. If something is immensly terrible, it is said to be kraptastic. Usually used to describe roommates; derived from a wretched flatmate named Kristin Krapfl.
Laura: How's your new roommate?
Bob: Oh, he's kraptastic.
Laura: That's too bad.
by Jack Begilie April 20, 2006

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