Used to express commiseration to a child or, ironically, to an adult.
More example sentences
- Unfortunately, it's not on This Is London, but gems included her having to move from Islington to a ‘£200,000 flat in Ladbroke Grove’ - aww, diddums!
- Oooh, did Daddy not give you enough pocket money this week - diddums!
- Max may not say, ‘There, there, diddums, Mummy kiss it better.’
late 19th century: from did 'em, i.e. 'did they?' (tease you, do that to you, etc.).