1 definition by FlankThatSouljaBoy
The resultant large mess that exists after urinating in a dissorderly fashon. It is usually the product of a lack of awarness, caution, or control. Can also result from a total lack of human decency or respect.
Brian was disoriented and did not pull his boxers down far enough. This resulted in a pissastrophe of epic proportions.
by FlankThatSouljaBoy October 13, 2009