New York minute vs heartbeat

New York minute and heartbeat both are nouns.

Word	Noun	Adjective	Verb	Adverb
New York minute	Yes	No	No	No
heartbeat	Yes	No	No	No

As nouns, New York minute and heartbeat are synonyms defined as:

New York minute and heartbeat: a very short time (as the time it takes the eye to blink or the heart to beat)

Other synonyms of New York minute include blink of an eye, flash, instant, jiffy, split second, trice, twinkling, wink.

New York minute (noun)	heartbeat (noun)
a very short time (as the time it takes the eye to blink or the heart to beat)	an animating or vital unifying force
	the rhythmic contraction and expansion of the arteries with each beat of the heart
	a very short time (as the time it takes the eye to blink or the heart to beat)