The pain resulting from spraying a cheesy, bloody substance from your penis while urinating. This usually results in the subject spraying said matter into the urinal while trying to have a conversation with a co-worker. Spraying subject usually spends the next few hours rocking back-and-forth in pain. The subject then becomes eligible for a complete anal exam and a trip to the "Special Room" where a camera (replete with cord) is inserted into the urethra.
Trevor had severe Chicken Fetus the other day and is now going to see the doctor.