GPT
A question about a sink or buldge leads to dress, farmtowns, dreaming, slaughter, and inability to speak. Pigs, craw fish, and Don's leash remark precede a lesson about a promontory in the Fifi Islands and an affair ending at its edge.
The final stanza gives a geographical term a personal use: the end of a promontory becomes a place to end an affair. That ending is concrete, though the earlier pigs and leash are not explained.
Claude
Section 'X' asks 'Is it a sink or just a buldge' and follows a collective 'we' who 'follow forlorn from farmtowns,' 'Born with slaughter / We are the same,' until 'I just can't speak.' It recalls 'twelve pigs strung with the sword and done' and Don's remark that 'he had to have it on a leash,' then ends: 'I didn't know what a promontory was, / until I got dropped off in the Fifi Islands / I think at the end of a promontory / Is where you end an affair.'
Four even quatrains move from a shared, dazed 'we' to a single speaker's memories and a closing piece of learned wisdom. The farm slaughter images and Don's leash remark stay unexplained, which keeps the tone flat and faintly ominous. The final stanza turns a geography word into a quiet, wry definition of parting.