In Our Flag Means Death season 2, several characters make reference to a realm called the "Gravy Basket" — and it isn't just a one-off mention either. The concept is first introduced in the third episode of the sophomore season after a heartbroken Ed Teach reverts to his ruthless Blackbeard ways in the wake of Stede Bonnet's departure. However, the notorious pirate captain isn't just taking his feelings out on random seafarers, but also on the crew of the Revenge as well.

https://screenrant.com/our-flag-means-death-gravy-basket-purgatory-explained/