ABDL
/ˌeɪˌbiːˌdiːˈɛl/noun
RareNot in standard dictionaries
1
Sexual practices involving paraphilic infantilism, sexual arousal that stems from pretending one is an infant (autonepiophilia) through the use of diapers and other paraphernalia, or sexual arousal attained from wearing diapers.
2
Specifically, diaper fetishism; diaperism.
3
A person who engages in ABDL practices; an adult baby or a diaper lover.
#colloquial