Yahoo Messenger was one of the most popular instant messaging services of the early 2000s, and its Buzz feature let a user shake a friend's chat window and play a loud buzzing noise to grab their attention. The sound became a shared memory for people who grew up chatting online before smartphones, often used to tease a slow replier or interrupt a quiet conversation. Today creators reuse it as a nostalgic alert and a joke about being ignored, because its harsh, unmistakable tone still reads instantly as someone demanding a reply.