1. Home
2. Idioms
3. have a/ finger on the button

have a/ finger on the button

---

---

have a/your finger on the button

to be the person who controls the nuclear weapons (= weapons that use power made by dividing atoms) that a country has and decides whether to fire them If Europe has its own nuclear deterrent, whose finger would be on the button?

See also: button, finger, have, on