Partners in Insanity 

A pair of people who are closer than just regular friends, brought together by their shared insanity.

Pairings such as this usually result in either amazing discoveries that change the world or mindless destruction.

Daniel, how would you describe your relationship with Leanne?
Oh, we are partners in insanity

Partners in Insanity by TheMaestro118 May 3, 2010

Hannity that Insanity 

to earnestly propagate an idea so preposterous or warped that it makes a sensible person hail Satan in despair.

Hannity that Insanity some more, Dude, because no one is listening.

Hannity that Insanity by hailbot666 July 22, 2011

InsaniFanatic

A person who is obsessed with Insaniquarium

I am a InsaniFanatic; I play Insaniquarium all day long

InsaniFanatic by Frogger April 26, 2005

Insanity 

Doing the same thing over and over again, but expecting a different result each time.

Murdering multiple people with a knife, getting mad because of the blood that stains your new shirt each time, and not changing your methods could be used as an example of insanity, on two levels.

Insanity by I.Am.A.Sociopath December 15, 2015

insanity 

locking yourself in a cage for a long period of time and only you have the key to unlock it

Insanity is going to school 5 days a week knowing how much you hate it.

insanity by World Patriot December 26, 2008

captain insano 

highest level of awesomeness you can go up to.

"Dude that jeep is captain insano!"

captain insano by master pickle71 April 13, 2009

Insaniac 

An intensely insane person with manic tendencies. Can also be defined as a person whose lack of sleep has driven them to insanity.

An extremist with a need for chaos.

"That guy just came at me, out of no where. What an insaniac!"

"I think Tim's been up for 5 days now. He's really turning into an insaniac"

"Dude, I'm going skydive-snowboarding tomorrow. I'm a f***ing insaniac!"

Insaniac by BK Lounge March 1, 2009