diaperbrained /ˈdaɪ(ə)pɚˌbɹeɪnd/ adjective1 •(US, Canada) Enamoured with diapers, sexually aroused by diapers; having a strong desire for diapersex.I think there's something in the air for sure... I'm more diaperbrained than normal tonight too, and that's a feat! @_@ — 2022 formsmore diaperbrained · most diaperbrained