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The act of simultaneously ejaculating and soiling oneself during intercourse. The "paradox" to which the name refers is the question as to whether one should cease the act of coitus in order to go to the bathroom and defecate, or to continue and risk the consequences.
"I'm going to need a mop and bucket, I may have suffered from the Wassermann Paradox."
by MasterOnion December 13, 2009