unmentionables

noun[plural only]3

1. •
   undergarments, underwear, drawers
2. •
   (euphemistic) genitals

   • The show understands that implied nudity is worlds funnier than actual nudity, and goes to delightful lengths to keep Marge and Homer’s unmentionables out of view. — 2016
3. •
   (no longer used) breeches, trousers