Fecal matter, especially that which is reminiscent of the shape and consistency of the hand-rolled flour dumplings one would make for a homemade batch of chicken and dumplings.
1. Potty training Kevin has been a nightmare. He keeps leaving rump dumplings on the bathroom floor.
2. Hold my purse, Greg... I need to go pump a rump dumpling.
Boys who enjoy yaoi (a genre in Japan that contains sexual and/or romantic relations between two men); literally translates to "rotten boy"; corresponding female : fujoshi