A fountain-like diarrhea emitting from one's anus.
Scott had a massive browntain that kept him on the jon for hours.
by Poopfan August 3, 2008
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A mountain of human feces. Either in an urban environment or in nature. An uninterrupted pile with no indication of what was used to wipe.
Walking down Bourbon St. I encountered a browntain in the middle of the street. Miraculously it remained undisturbed as the crowds of people walked by.
by WalnutPlatt July 9, 2018
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