Top Definition
A minute blood clot generally located in the pulmonary artery that is a result of a combination of lack of sleep, poor diet, and repeated exposure to vast amounts of carbohydrates. Can lead to the shutting down of the central nervous system and/or temporary memory loss along with severe weight gain.
The doctors at Pittsburgh Hospital for the Mentally Accursed recently found a mutated genetic strain of virus that causes ahtras to be common in many forms of lemurs.
by bob buttler June 14, 2009

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