Bababooey comes from Baba Booey, the nickname of Gary Dell'Abate from The Howard Stern Show. The phrase spread far beyond radio through prank calls, live-event shoutouts and internet meme compilations, where its loud, silly delivery made it an easy punchline. It remains popular because people instantly recognize it as a classic random humor sound, much like bruh in short-form edits. Its staying power comes from how quickly it flips a normal moment into something intentionally ridiculous.