Pricks and pussies
Boiling together
In the overcrowded bath.
This is the most common translation of a poem by Yamaguchi born poet Santoka Taneda. The draincover is in Yuda Onsen, and I am informed that the meaning is read nowadays to mean that both men and women are welcome in Yuda Onsen's spas.
He was a very interesting poet, by all accounts an inveterate drunk who came under the influence of the Free Haiku Movement.
After what was probably a failed suicide attempt he became a monk and then spent the rest of his life wandering Japan, begging, and writing poems a la Basho.
His poetry, like much of Japanese "folk" culture is quite crude and earthy, displaying a very human and natural attitude. Those who prefer the sanitized Victorian/Puritan/Confucian version of japanese culture that prevails today may not like his stuff, but its worth searching out.