EXAMPLES FROM THE WEB FOR HIP BATH
They may be taken in the form of a 'sponge bath,' or 'hip bath.'
I say, you rascal, why are you worse off than the devil in a hip bath of brimstone?
Yes, and towels, and a hip bath and a basin—but the brandy first.
The hip bath should be taken in water of a temperature of 92° at the beginning.
A douche or hip bath may be taken every morning, with the temperature of the water suited to the endurance of the individual.
A warm sitz or hip bath just at the beginning of the period will often give almost magical relief.
The singer could hardly have been drowned in a hip bath, but Mr. Garnet hoped for the best.