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When you have a huge turd come out and little shit flakes break off and swim around in the bowl.
"Holy crap! I just took a huge a shit and it was all flaky!"

"Dude1 That was a sandstone shit!"

"Dude! Gnarly!"
by dude007 May 28, 2008
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Apr 28 Word of the Day
Literally everyone, ever. Including the writer of this definition.
by masokitsune January 17, 2019
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