A laxative, such as Miralax, dissolved into a drink like juice or Gatorade.
Mom: Sweetie! Are you ready for your poopy juice?
Kid: Stop calling it that... I already know what it does...
by poopyjuicekid January 2, 2012
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A rag that has been soaked in Pepsi and looks like someone has used it to clean up excrement
*throws poopy rag at someone* Poopie juice.
by The Rooster man February 21, 2019
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