水干

Etymology
Appears to be a Japanese coinage using elements borrowed from 🇨🇬, as a compound of.

Noun

 * 1) cloth that has been stretched and dried using only water and no starch
 * 2) an informal garment, like a tunic, worn by males of the Japanese nobility in the Heian period, as outerwear, originally made from such cloth
 * 3) the edge of the water, the shoreline, the waterside