when you shit and fart at the same time, usually soiling ones underwear
after eating chili one may have a case of the shiarts.
by hammerjohn August 11, 2006
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Shiart - the word 'shit' said with a frustrated augmented slur.

backround - you cant swear at work so just say Shiart
This crap tastes like Shiart
by Davos November 30, 2004
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