In a New York minute and On-the-spot

On-the-spot and in a New York minute are semantically related. In some cases you can replace phrase "On-the-spot" with "In a New York minute", this phrases are similar.

On-the-spot adjective - At the scene of action.

In a New York minute and on-the-spot are semantically related. Sometimes you can use "In a New York minute" instead an adverb phrase "On-the-spot".