diaperslave · noun1
From diaper + slave (“one who has no power of resistance to something, one who surrenders to or is under the domination of something”).
diaperslave · noun2
From diaper + slave (“a submissive partner in a BDSM relationship who consensually submits to, sexually or personally, serving one or more masters or mistresses”).
Etymology from Wiktionary, CC BY-SA 4.0.