Inverse IO 

Using a reverse grip to release the interest-only component of your nutsack. The opposite of the Floating IO, which is a flying forward grip.

DB1: Hey RF, I noticed your triceps have developed some nice tone.

DB2: Yeah, it's thanks to all my Inverse IO action.

Inverse IO by The GKYer December 27, 2010

Negative Reality Inversion 

A Negative Reality Inversion (NRI) a term originating from the series "The Young Ones" and is actually technobabble.

A Reality Inversion would be the symmetrical inversion of reality. Making it negative would actually cancel it out, leaving you with reality.

NEIL: Anybody watching that must've thought it was a negative reality inversion.

*A man and woman are making out in the shadows
WOMAN: Cor, that looked just like a negative reality inversion, didn't it?
MAN: Yes, it did, a bit.

*They turn their attention back to each other

Negative Reality Inversion by DecoyDucky May 4, 2010

ANAL-CRANIAL INVERSION SYNDROME  

A chronic condition by which the physical connections between the buttocks and head are reversed, causing fecal material to spew from the mouth. Conventional treatments include wiring the jaws shut or the prompt use of a gag ball.

ACIS is more harmful to those coming in contact with the ACIS person than the ACIS person him/herself. Even casual contact results in looks of disbelief, screaming and the uncontrolable urge to place one's hands over one's ears and yell "Make it stop". Family and friends living with an ACIS patient are advised to wear ear plugs, or in more extreme cases, to drive shiskabob spears through their ears.

Not to be confused with having Head-Up-Assitisis or Asshatoses.

President Bush displayed symptoms of Anal-Cranial Inversion Syndrome at his last interview when he spoke about his legacy.

ANAL-CRANIAL INVERSION SYNDROME by radfringe December 20, 2008

cranial rectal inversion 

The act of having your head up your ass.

"Are you really that stupid? You must be suffering from a cranial rectal inversion. What a dumb-ass."

cranial rectal inversion by BRAUCHWURST April 19, 2003

craniorectal inversion 

A condition in which a person has their head stuck up their ass.

"He's such a dipshit. He suffers from craniorectal inversion."

craniorectal inversion by Chicka Nuts October 23, 2007

craniorectal inversion 

A state of being usually adopted by middle management types whereby one's head is inserted into one's own arse. Considered to be quite an accomplishment by middle management types, given that their heads are at the same time permanently stuck in the respective arses of upper management types.

Psychologist: "The patient appears to be suffering from a chronic case of craniorectal inversion. What does he do for a living?"
Psych ward Nurse: "He's the manager of the Hospital's Human Relations team. He answers to the Director."
Psychologist: "Say no more."

craniorectal inversion by Apathetic Care Bear January 31, 2005

rectocranial inversion 

Having your head up your ass.

I had a bad case of rectocranial inversion when I did that.

rectocranial inversion by Bill Kirby August 21, 2003