He seems to have written his memoirs mainly so that he can 'dish the dirt' on all his former lovers.
The police 'struck pay dirt' when a witness came forward with new information.
The band 'hit pay dirt' [=had a big success] with their first single.
(..) Nothing. Everything is his grift. He owns you, he owns this cIub, he owns this whoIe stinking town. Things change. You mess with Niko, you end up taking a dirt nap. He's the onIy one who's napping... and I'm about to give him a serious wake-up caII. But we need cash... so first we take the bank... (..)1994 The Mask