hit the button

verb2

1. •
   (informal) To be very satisfying; to be just the thing needed or desired in some particular situation.

   • The sure hit is "This Is Ska, the Skacid Mix"! Exactly what it sounds like, this tune hits the button, rocking all kind of people. — 1989
2. •
   (informal) To initiate a nuclear war (via a press of the proverbial nuclear button).