The 'Elmo Twitter Hacked' or 'Antisemitic Elmo' meme stems from a combination of real-life incidents involving a costumed performer in New York City known for antisemitic rants and various viral hoaxes featuring fake screenshots of the official Elmo Twitter account. These screenshots typically depict the beloved puppet saying something wildly inappropriate, aggressive, or politically extreme, contrasting his innocent persona with adult themes. It has become a staple of 'dark' Sesame Street humor, used to mock social media security breaches or simply to create shock value through the juxtaposition of childhood nostalgia and unhinged internet culture.