Big Red Button
Noun · Slang & Abbreviations
Definitions
A figurative term for an obvious emergency control that can quickly disable a system, feature, or rollout when things go wrong. It evokes the idea of a dramatic but simple kill switch or last-resort safety mechanism.
In plain English: An emergency shutoff control for stopping something fast when it goes wrong.
Example: "Before the rollout, make sure support knows where the big red button is if traffic starts looping."