The 'Why I Gave The Pope Undertale' meme stems from a real-life event in 2016 when YouTuber MatPat, creator of The Game Theorists, was invited to the Vatican for a summit. As a symbolic gift, he chose to give Pope Francis a Steam code for the indie hit Undertale, citing its themes of mercy and pacifism. The internet reacted with a mix of confusion, irony, and hilarity, turning the event into a lasting legend of internet culture. Today, the meme is used to highlight bizarre crossovers, awkward gift-giving situations, or the sheer audacity of trying to explain gaming lore to world leaders.