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Similar to Bipolar Mood Disorder, a person with Bipolar Poop Disorder alternates between extreme diarrhea and constipation and can never seem to take a proper shit.
Patient: I had bad constipation 2 weeks ago, then last week I had bad diarrhea, and now I'm constipated again.

Doctor: I think you have Bipolar Poop Disorder.
by Schnitterbit August 25, 2011
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