The line comes from RC Stunt Copter, a stunt-flying game where the voice acts as a dry in-game gatekeeper before risky maneuvers. Clipped and shared on soundboards, it spread as a short reaction for overconfidence and doomed attempts, similar to other game alert lines like Enemy Spotted and notification sounds like GTA V Notification. Its staying power comes from the deadpan delivery, which turns any fail compilation, trick attempt, or bold claim into an instant joke about not being ready.