noun
waste-water container (tea ceremony); slop basin
A container used in the Japanese tea ceremony to discard water after rinsing the tea bowl.
茶道では、水翻しに湯を捨てます。
In the tea ceremony, you discard the water into the waste-water container.
Compound of 水 (water) and 翻し (spill, overturn), referring to a container for discarded water.