1) Making such a huge shit that it goes above the water line and clogs up the toilet.

2) A nickname for Donald Trump (as President).
Dude, I was so late to work this morning! I had a Dumpf and it took half an hour of plunging to get it to go down!!

2) God, I can't stand Dumpf; America's really in the toilet!
by LadyBookworm80 August 6, 2017
Get the Dumpf mug.
A large, hefty stick found in a Jamaican wood by the Queen of England.
I do believe her majesty's found a dumpf.
by A little Bum. August 8, 2007
Get the Dumpf mug.