Meaning of didlum in English:

didlum

(also diddlum)

Pronunciation /ˈdɪdləm/

See synonyms for didlum

noun

Northern English
  • A savings scheme in which members of a particular group deposit a regular sum throughout the year with a nominated treasurer who shares out the money at Christmas.

    ‘so glad I saved £150 in my didlum for Christmas’
    • ‘every department at the Press had a diddlum’
    • ‘Christmas wrecked for workers as £14,000 of didlum savings 'taken' from Hull savings scheme’

Origin

Early 20th century apparently humorously from diddle + 'em (informal variant of them).