The act of defecating while sitting backwards on the toilet and hugging the toilet tank, with the intention of having feces slide down the edge of the bowl to maximize stink and stains, rather than drop directly into the water. This method is the only counter to the potty plague that is "Poopourri".
Jamie walked into his bathroom and saw feces caked inside the front rim of his toilet. He knew that his roommate had been koaladumping.
by Minute_Man_Sam May 2, 2014