Wiktionary
vb. (context idiomatic English) To strike it rich; to get lucky or have a big break.
Usage examples of "hit paydirt".
If the Mob's scouting party disappears, the Big Boys will know they've hit paydirt and set things in motion.
While she and Pendergast were going through deeds, he'd gone straight to the Museum and hit paydirt.
When he returned, humming a little under his breath, she knew he'd hit paydirt of some kind.
But as Tia decelerated into the inner system, she suddenly knew that they had hit paydirt without ever coming close enough to do a surface scan.
We checked the airman's ID number by radio with the personnel officer at Vanderhoff, and hit paydirt.
Then he hit paydirt, spotting two Negroes by the exit curtains pulling a handoff: cash for something palmable, a quick segue into the Parking lot.
I was ready to give up and go out, go drinking or something, but I made myself work a little longeryou might try that sometime, Stanand I think I hit paydirt.
I was ready to give up and go out, go drinking or something, but I made myself work a little longer-you might try that sometime, Stan-and I think I hit paydirt.