Meaning of dirty laundry in English:

dirty laundry

noun

(also dirty linen)
mass noun
  • Personal or private affairs that one does not want to be made public.

    ‘I had always been private and not one to air my dirty laundry’
    • ‘the band would never forgive me if I washed my dirty laundry in public’
    • ‘an unsettling and strange tale about a family's dirty laundry’