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2.
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 29, 2004
 
1.
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 10, 2006