A prank involving the system on a conventional flushing toilet (invented by Sir Thomas Harrington). The prankster performs a bowel movement into the top of a toilet (rather than the bowl). The next unfortunate user witnesses faeces gush forth (whilst of course expecting water) when flushing said toilet.
God damn it Leroy - did you set up this East-African Chocolate Flush?

The East-African Chocolate Flush is a horrible prank.
by Lark Mawrence June 09, 2013

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