The 'Periodt' meme stems from a slang term used to add extreme emphasis at the end of a statement, serving as a more intense version of the word 'period.' Rooted in African American Vernacular English (AAVE), it gained massive mainstream popularity through social media platforms like Twitter and TikTok, often associated with the hip-hop duo City Girls. The meme usually features reaction images of people looking confident, defiant, or smug, signaling that a discussion is officially over and the speaker's point is absolute. It is widely used in digital culture to punctuate a hot take, express unwavering self-confidence, or definitively shut down an argument with flair.