The line comes from JonTron’s Flex Tape II - The Flexening video, in which the YouTuber reviews the famously enthusiastic Flex Tape commercials and plays up his own excitement for the product. The phrase caught on because it distills that over-the-top sales pitch energy into a single, quotable decision to buy everything. Clips of the moment circulated on YouTube and social media, where editors began using it as a punchline for hauls, collections, and shopping jokes. It remains popular because the delivery is instantly recognisable even without the original video context.