[jon-ee-on-th uh-spot, -awn-]
- a person who is on hand to perform a service, seize an opportunity, deal with an emergency, etc.
Origin of Johnny-on-the-spot
First recorded in 1860–65
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for johnny-on-the-spot
Sadie couldn't get it through her head, though, that I wasn't a Johnny-on-the-spot.Shorty McCabe
Henri missed these remarks, for he was Johnny-on-the-spot to retrieve the game.Our Young Aeroplane Scouts in Germany
"Peggy's conscience is such a Johnny-on-the-spot," Amy explained.Peggy Raymond's Way
Harriet Lummis Smith
"Allus glad to be Johnny-on-the-spot," smiled the older man.The Chalice Of Courage
Cyrus Townsend Brady
All she's got to do is crook her little finger and you're Johnny-on-the-spot.The Rosie World
Idioms and Phrases with 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]
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.