Polymarket, a decentralized prediction market platform, recently announced that its users are forecasting a 60% probability that the "demonic butt baby" from a recent South Park episode will be a girl. The prediction market, which allows users to bet on the outcome of various events, is engaging with the popular animated series' latest storyline involving former President Donald Trump and Satan. The tweet from Polymarket, posted on September 25, 2025, stated, "> JUST IN: 60% chance the demonic butt baby is gonna be a girl — Polymarket."
The "demonic butt baby" refers to a fictional plot point in South Park's 27th season, where Satan becomes pregnant with Donald Trump's child. This storyline has been a central theme in recent episodes, including "Conflict of Interest," which also satirized prediction markets like Polymarket and Kalshi. The show depicted characters placing bets on the gender of the fictional offspring, mirroring real-world market trends.
Polymarket is known for hosting a wide array of prediction markets, ranging from political outcomes and crypto prices to pop culture events and even highly unusual or controversial topics. The platform operates as a decentralized exchange built on blockchain technology, allowing users to bet on future events. While some markets cover serious geopolitical or financial outcomes, others, like the "demonic butt baby" market, delve into satirical or entertainment-based predictions.
The platform has faced scrutiny for some of its more outlandish markets, including those related to WNBA games. Despite the controversial nature of some of its offerings, Polymarket continues to attract significant trading volume, with users actively speculating on various outcomes. The integration of the South Park storyline into a real-world prediction market highlights the platform's unique position at the intersection of entertainment, satire, and speculative trading.