going ballistic

Becoming fully, truly, unstoppably, gravitationally angry. Usually of a person or semi-sentient animal that can experience anger.
References ballistic missiles, whose flight paths are nearly un-alterable after a certain point.

"When dad finds out I didn't submit my college applications, he'll be going ballistic!"

by 4onen November 28, 2015

Go ballistic

Get very angry, such that you lose your self-control.

I wouldn't start by telling her that you actually slept with Rachel. She'd go ballistic and you'd never be able to explain the rest.

by Observer52 August 23, 2005