Top Definition
anything that is so fantastic it actually makes ones balls twitch.
when jim hit the lottery it was so ballstastic that he could hardly speak.
by tellitizaman October 08, 2010
Disappointing, having a bad time. Could be used as opposite of fantastic.
The company president is coming to the office tomorrow, work will be ballstastic.
by mzeatwzad October 17, 2011
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