Johnny-on-the-spot

(American informal)

someone who is immediately ready to do something, especially to help someone This guy had just gotten a flat tire, and there I was, Johnny-on-the-spot with my tools in the back of the car.

Johnny-on-the-spot

A person who is available when needed, as in He always is there at the right time, a real Johnny-on-the-spot. [Late 1800s]

Common Names:

Name	Pronounced	Usage
Nahum	NAY-əm (English), NAY-həm (English)	Biblical
Naoum	-	Biblical Greek
Ohad	-	Biblical
Gurutz	-	Basque
Shemer	-	Biblical
Antoon	-	Dutch, Limburgish