diapersuit

noun1

1. •
   (slang) In fiction and art, an insulated full-body suit, usually made out of rubber or latex, that either functions entirely like a diaper or includes a diaper attached within it; sometimes depicted as a mascot-like costume.

   • Oh, the many times I've fantasized about having lots of money so I could build disposable full-body diapersuits... -.- — 2013