now or never

*now or never

at this time and no other. (*Typically: be ~; become ~.) This is your only chance, John. It's now or never. I decided that it was now or never, and jumped.

(it's) now or never

you should do something immediately because you may not get another opportunity Olympic athletes only get a chance to compete every four years, so it's now or never for me.

Common Names:

Name	Pronounced	Usage
DarÍO	dah-REE-o	Spanish
Santa	SAHN-tah	Italian
Vitalijus	-	Lithuanian
DiỆU	-	Vietnamese
Gjord	-	Swedish (Rare)
Sebastianus	-	Late Roman