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
Michal (2)	-	Biblical, Hebrew
Hughes	[hju:z]
Justyna	yuws-TI-nah	Polish
Arslan	-	Turkish, Turkmen
Gipson	['gipsn]
Yemelyan	-	Russian