Caranialrectumitus 

Medical condition wherein one's head is up one's ass.

After Dave backed the car into another parked auto his passenger calmly noted, "You are obviously suffering from Caranialrectumitus today".

Caranialrectumitus by John Morse May 12, 2006

cranialrectumitis 

A person suffering from a terminal case of having their head up their ass.

That guy just made the stupidest mistake I've ever seen in my life, he must suffer from cranialrectumitis.

cranialrectumitis by driz January 27, 2005