The kabuki clap comes from kabuki, the traditional Japanese theatre that developed in the early 17th century, where wooden clappers called hyoshigi were struck to signal the start of a performance and mark important moments on stage. That sharp, attention-grabbing snap later became a familiar sound effect in videos and memes, where creators use it in the same way to signal a reveal or a dramatic turn. Like the Vine Boom, it works because the sound is instantly recognisable as a cue, giving a short clip a staged, theatrical finish without needing dialogue.