Top Definition
A malady common to carbon-based life forms, cranio-rectal intrusion is also known as having your "head up your ass." As the size of any bureaucracy or institution grows, an exponential increase in the number of cases of "cranio-rectal intrusion" will also occur.
With no repercussions ever being suffered for not following the very laws it institutes, the U.S. Congress continues to prove that the people of the U.S. are suffering from a level of apathy that can only be achieved by prolonged cranio-rectal intrusion.
by BiggerD October 11, 2010

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