Jenkem is one of the internet's most enduring urban legends, revolving around a hallucinogenic inhalant supposedly made from fermented sewage. While reports of the substance surfaced in the late 1990s, it achieved meme immortality in 2007 when 4chan users and message boards began posting images of the 'forbidden brew' to troll law enforcement and mainstream media. The meme typically plays on shock humor and the absurdity of the concept, often utilizing 'cursed' imagery or mock DIY tutorials. Today, Jenkem remains a staple of internet subculture, representing the perfect intersection of a satirical hoax and a genuine moral panic fueled by the early web.