A large hemorrhoid located on the left side of the anus. Typically caused by innate brain cell deficiency or brain damage. Has a mortality rate of 97% and is extremely contagious. Symptoms are described as loss of intelligence and a general sense of worthlessness. The only cure is complete eradication of the body, effectively cremation.
"John got a case of Cowsta, and we had to put him down."
by The Nutcraker October 07, 2012

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