The Vlogbrothers meme cycle stems from the long-running YouTube channel started by brothers John and Hank Green in 2007. What began as a 'Brotherhood 2.0' experiment evolved into a massive online community known as Nerdfighteria. Memes usually revolve around John’s existential dread, Hank’s enthusiastic science explanations, or recurring inside jokes like 'Pizzamas' and 'DFTBA.' These templates are frequently used to capture the wholesome yet chaotic energy of the channel, allowing fans to highlight specific moments of nerdiness, social commentary, or the brothers' unique brand of internet-driven philanthropy.