The drumroll is a traditional percussion technique long used in theatre, circus acts, and ceremonies to signal that something important is about to happen. As a standalone sound effect, it became a staple of television, comedy, and game shows, where a pause before a result made the outcome feel bigger. Online creators adopted the same effect for short videos, reaction clips, and live streams, using it to stretch a moment before a reveal. Its familiarity is part of its power, because audiences instantly recognise the cue and know to wait for the payoff.