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.
(..) You're a hit man? Cool. - Do you clean anyone? - No women, no kids. That's the rules. How much would it cost to hire someone to get those dirt bags... who killed my brother? - Five grand a head. - Wow. How about I work for you... and in exchange, (..)1994 Léon: The Professional