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1.
interjection: used to indicate that a situation may cause someone to go ballistic, postal, or otherwise angry beyond all reason. Usually used in a light-hearted manner; saying it when someone is actually about to go ballistic could be the last straw for that person. The term can also be used by magicians, particularly those who specialize in pyrotechnics.
mart: mr. scheckter was so pissed off at you that he was turning red and shaking like a bowl of jello.
bart: yeah, good thing the bell rang, or he would have gone ballistico on me.

The Amazing Kargol:.......and now we add the final ingredient and *blast* "BALLISTICO"
Janet: why, that's amazing, Kargol!!
by earpuller November 02, 2005