The mic drop began as a live performance gesture, used by comedians, rappers and speakers to signal that a performance was over and could not be topped. It entered mainstream conversation after high-profile stage moments, most famously Barack Obama's mic drop at the 2016 White House Correspondents' Dinner, and quickly became shorthand online for a decisive ending. As short-form video grew, editors lifted the thud itself into a reusable effect, so a single drop could now close a joke, an argument or a reveal without any dialogue.