The name also participates in a longer word-family. The 2023 EGO TERRORISM text carries “LOSTCOAST SUNKCOST,” and EGOTERRORISM track 11 is “The Suffering Coast,” whose lyric begins from being sunk off a coast. These are best treated as a recurring coast/cost/sunk cluster rather than proof that every phrase names the same fictional place.
Within the region
Bahía Perdida is named as a desired residential destination in the same conversation.