The phrase became famous on 11 January 2017 when President elect Donald Trump refused a question from CNN reporter Jim Acosta at a press conference and told him you are fake news. The exchange was clipped widely on news and social media as Trump battled mainstream outlets over coverage. Shortened to just the accusation, the line became a meme sound used far beyond politics, applied to rumors, hoaxes and bad information. Its staying power comes from how recognizable the voice and wording remain years later.