A small cork-like turd that is expelled from one’s ass (much like popping the cork off of a Champaign bottle) during the act of farting.
Sitting on the toilet
Jorge: “phoph pfffffffhhtt.”

Jorge: “wtf that little shit just shot out of me like a mento from a fizzy cola.”
Jorge: “ sweet mother teresa that there is what I call a Shart rocket.”
by DumpTrucksRfcknAwesome July 19, 2019
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Shart so hard a piece of shit rockets off the asshole and lands somewhere for all to see.
He bent right over and launched a shart rocket straight at me!!
by Patliciaisms May 3, 2016
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That point at which your heading to bathroom and suddenly its lift off. Shit comes screaming out your butt like a 747 at lift off as you scramble to keep it under control.
Joberty was headed to bathroom and suddenly he rocket shart all over amena.
by tiggerzz July 21, 2017
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