noun
clean hot bath water for rinsing
Refers to the final clean hot water used to rinse off after soaking in a bath, especially at a public bath or hot spring. Often used in the phrase 上がり湯を使う.
See also: 陸湯
温泉から出たら、上がり湯で体を流してください。
After getting out of the hot spring, please rinse your body with the clean hot water.
陸湯 is a synonym for 上がり湯, also meaning clean hot water for rinsing after a bath, but 上がり湯 is more common.
Compound of 上がり (agari, 'finishing, getting out') + 湯 (yu, 'hot water').