The definition of insanity, is, doing the exact same fucking thing over and over again, expecting shit to change. That. Is. Crazy.
'Did I ever tell you the definition, of insanity?'
by Vaas Montenegro December 30, 2013
Insanity isn't deciding to do what the sane man does not.
Insanity is when you forget what the sane man does.
by G3N3R1C January 11, 2013
The knowledge that you’re totally, absolutely, completely normal. They’re the crazy ones.
by Collin Moore Shenanigans May 27, 2018
1) A mental state where one can not tell the difference between reality and their imagination.
3) A type of behaviour where a person may act in a way that may be seen as "uncool" or "weird" (and doesn't care).
3) The only way to fly.
Austin Powers: You're insane!
Goldmember: And that's the way, uh-huh, uh-huh, I like it!
by Peeves April 12, 2004
The state of suffering a severe psychiatric disease which causes extremely abnormal behaviour or loss of touch with reality (psychosis), most commonly associated with schizophrenia and bipolar illness (the manic phase).
King George suffered from bouts of insanity.
by Doc_B April 13, 2015
Coming to the realization that it really is all in your head, and that you are the master of your own universe.
What is more real than human perception and cognition? Free, honest pure souls are those we say "suffer" from "insanity"
by synaptic cosmonaut April 24, 2009
"How come all them geniuses acting so out of the ordinary?"
"It's something not understood by a lesser mind to understand insanity"
by Anktos April 24, 2015