Taking a shit in the toilet system then flushing it causeing the water to come out brown. and that is a rumper dumper
by Alex Moretti October 05, 2008
Rumper Dumper (Or Rumpy Dumpy) refers to a HUGE ass. I'm talking giant butt. Milked up butt cheeks, the whole nine yards.
by GiveMeTheNoodles May 16, 2024