What is Ahtra?
A large chimpanzee booger.
The chimps at the San Fransico Zoo repeatedly harassed observing guests by smearing their ahtras all over the observers clothes.
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.