1 definition by Jeuni

Combination of 'fart' and 'dump.' A fump is when you think you have to take a big shit, but when you sit on the toilet to do it, you just let out a huge, explosive fart. Some small, misshapen pieces of poo usually accompany a fump.
"Man I thought I had to take a huge shit, but it was just a fump."
by Jeuni October 13, 2012
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