To leak fecal matter or full on defecate oneself while performing one or more cartwheels.
Connie was well on her way to earning a first place at her gymnastics competition when in the middle of her routine, she did a Cart Shart and it cost her the entire routine as well as a new leotard.
by Eaton Holgoode June 8, 2015
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A cart which is entirely powered by fart and shart power.
Danny: Taylor, propel that shart cart.
Taylor: Wait, let me gather my shart power. It'll be a second.
by D & T Car Detailing January 2, 2011
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a type of vehicle that sits on rails similar to a mining cart. The difference between the two is that a shart cart is powered solely by the rider and his ability to generate thrust in the form of a whirlwind of shart spraying from his anus.
joseph: dude my stomach feels like its about to explode but i need to get to my girlfriends house!
bob: dude just take the shart cart there! its a win win situation!
by bagelboy40404 June 22, 2010
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