BDF

== English == === Etymology === Abbreviation. === Pronunciation === IPA(key): /ˌbiːˌdiːˈɛf/ Hyphenation: B‧D‧F Rhymes: -ɛf === Proper noun === BDF (military) Initialism of Bahrain Defence Force. (military) Initialism of Barbados Defence Force. (military) Initialism of Belize Defence Force. (military) Initialism of Botswana Defence Force. === Noun === BDF (plural BDFs) (ABDL) Initialism of big diaper Friday (an occasion to wear diapers, and to post content online, especially images and videos, of (usually large) diapers).