These are Japanese-era names. What are they called today? I think Fumpo must be the same (or close to) Shuishe. Is Dairin the Japanese name for Ita Thao?
"Sounding refers to the insertion of foreign bodies into the urethra,” said Dr. Stephen H. King, M.D., a board-certified urologist. [...] "Sounders have been known to insert a wide variety of objects, including but not limited to catheters, tubes, beads, pencils, batteries, drill bits, and even the head of a decapitated snake. Yes, the latter has been reported.”