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Dabs, blobs or streaks of leftover shit stuck to the inside of the toilet bowl. Can be challenging to remove. Often immune to direct urination. Un-effected by harsh chemicals. Sometimes remaining in the bowl until the cleaning person comes.
Damn, someone flushed too soon and left shit barnacles!
by Mike Mermel July 11, 2014
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After you take a huge sticky shit you leave a "Shitbarnacle"
Who left a Shitbarnacle in the toilet
by Townail81 November 01, 2017
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