adult baby

Noun

adult baby (plural adult babies)

1. An adult person who enjoys role-playing a regression to an infant-like state and acting like a baby or toddler, as through wearing diapers, engaging in babylike activities, babbling, etc., generally for sexual gratification.
   • By consenting to go along with Jerry's fetish, Barb set herself apart from the vast majority of women who live with adult babies. This makes her story not only unusual but significant. Instead of getting freaked out, as most women would have done, Barb has actually used it to add excitement to the...1983 December, Angela Herd, “Big Babies: The Fetish of Infantilism”, in Larry Flynt, editor, Hustler, volume 10, number 6, Larry Flynt Publications, page 60
   • Diaper Pail Friends […] World's largest adult baby–diaper lover club. Thousands of members listed for contacts. Large selection of diapers, big baby clothing, videos, audio tapes, photos, directories, stories, books, case histories.1996, Bill Brent, editor, The Black Book, 4 edition, Black Books, →ISBN, page 49

   Synonyms:

   infantilist, AB