the act of, pertaining to, or characteristic of a person who is mentally deranged
; not sane; not of sound mind.
A person that either temporarily or completely turns to utterly senseless
behavior, such as an adult dressing in diapers and driving non-stop more than 900 miles to attack a lover's companion who was a victim of an imaginary love triangle.
Wow Scotty, when that lady talking on her cell phone and swerving all over the road cut Kenny off, he went absolutely astronuts! He followed her to the next town(disregarding the fact that he had to be at work), jumped out of his car, slammed his door and went off on a raging rant on her.