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.
(..) a long time, Dondarrion. Aye. I think the first time we met was at that tournament... And I always thought you were dull as dirt. You're not bad. I don't hate you. Don't like you, but you're not bad. Thank you, Clegane. (..)2017 TvShow: Game of Thrones Title: Dragonstone Season: 7 Episode 1