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
Patton	PAT-ən	English (Rare)
Aimi	ah-ee-mee	Japanese
Franco	['frɔŋkəu]
Goodman	['gudmən]
Jenna	JEN-ə (English), YEN-nah (Finnish)	English, Finnish
Atterbury	['ætəbəri]