Main definitions of BFN in English

: BFN1BFN2

BFN1

abbreviation

British
informal
  • Bye for now.

    ‘will post more when I have some more time, BFN’

Main definitions of BFN in English

: BFN1BFN2

BFN2

noun

informal
  • A negative result on a pregnancy test (particularly used in online forums)

    ‘I seem to have all the symptoms of being pregnant but I still get BFNs’

Origin

Early 21st century: abbreviation of big fat negative.