walk the talk—(U.S., also: walk one’s talk) do what one said one would do—not just making “empty promises”:
- We need not to talk the talk but it’s time to walk the talk. The time to act is now or never at all.
walky-talky—a small portable radio link (receiver and transmitter):
- The security guard got on his walky-talky and tried to contact the school office to have somebody call an ambulance.