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1.
The act or process of taking such a large shit that you are forced to flush the toilet half way through your deification.
Properly used in a conversation:

Dude Number 1 "Dude, I took the gnarliest Mary Pooppins after eating all those burritos."

Dude Number 2 "Dude, I want burritos"
by halffullflusher February 20, 2014

Words related to mary pooppins

big shits burritos flush mary poppins toilet