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In order to perform a Dirty Octagon, one must fully, and vigorously masterbate on 8 separate occasions in no more than 1 hour's time. Attempting to perform the Dirty Octagon without proper training and equipment can lead to severe and irreversible injury. Upon completing the DO, you shall be admitted to the Masterbater's hall of fame in Detroit, MI.
Student #1: "Dude, I'm gonna pull a Dirty Octagon tonight"

Student(penis-less) #2: "your p***s is going to fall off"
by 343Cockblaster September 09, 2010
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