"Pure insanity" means a completely crazy or irrational state of mind or situation, where logic or reason doesn't apply.
Sentences with «pure insanity»
It's pure insanity from start to finish, loaded with moments that are as unforgettable as you could ever hope for a horror movie to be. (bloody-disgusting.com)
Jealousy is maddening, and can show off as pure insanity when it's at its highest level of emotional turmoil. (powerofpositivity.com)
It's pure insanity fuel - injected with nitrous oxide. (fatmovieguy.com)