The Jenny Mod meme refers to a notorious, fan-made adult modification for Minecraft created by the artist SlipperyT, featuring a custom character named Jenny. While the mod itself is controversial due to its mature content, it became a massive internet phenomenon through reaction videos, shock-value posts, and parodies of the game's family-friendly nature. Users often utilize the Jenny Mod template to joke about accidentally installing the wrong files or to highlight the 'cursed' side of gaming mods. It has evolved into a visual shorthand for unexpected and mature discoveries within the blocky world of Minecraft, representing the extreme lengths to which the modding community can transform a sandbox game.