Pipel

He had a Polish Schreiber, a homosexual who was attended to by a Pipel, a German Gypsy who was the Schreiber's valet, his cook, his shoe shine boy, his lover, and his alternate, in which capacity he proved to be as much of a trouble to us as his boss.

[…]

None of Kapo Rudi's three Pipels was German, but, knowing what was good for them, they learned all the songs by rote.