washlet
n.— «Japanese bathrooms are the apotheosis of the nation’s fascination with both cleanliness and high-tech gadgetry. The toilet at Tokyo Midtown may have been a rather basic model of what is called a “washlet,” but its options included a warmed seat, bidet cleansing, spray cleansing (a rather different angle and spray from the bidet option), a “powerful deodorizer” and, of course, the “flushing sound” with adjustable volume.» —“The Discreet Charm of the Ladies Room” by Hannah Beech Time Sept. 11, 2007. (source: Double-Tongued Dictionary)
Further reading
Nell from Virginia Beach, Virginia, remembers her great-grandfather and her grandmother using the phrase as clean as seven waters to mean “spotlessly clean.” The word waters in this case is analogous to washes or rinses, so being cleaned...
In the 1970s, physicists predicted the discovery of two quarks called T and B for top and bottom. Some poetically-minded physicists argued that the T and B quarks should instead be called truth and beauty, but the terms top and bottom eventually won...