Japanese Bath
To be showered in fecal mater while sitting in a tub.
John calmly lays down naked in the bath tub. Naked Jill squats over him in a cat like state of readiness. John screams, " Turn on the water!!!". Jill proceeds to defecate on John. Thus completing the age old ritual of the Japanese Bath.
Japanese Tongue Bath
First referenced on the Steve Dahl/Gary Meier show on WLS in Chicago in the 1980s, it refers to one or more people bathing an individual using only their (human) tongues as the washing/cleansing agent. Hence the name.
"Pardon me, but I must be going; my manservant David has arrived to give me my weekly Japanese tongue bath."