Definition of dum-dum in English:

dum-dum

Syllabification: dum-dum

noun

informal
  • A stupid person.
    More example sentences
    • Because we are free, people can choose to be dum-dums.
    • Of course I care for her dum-dum, she's my responsibility!
    • Take advantage of him while he's here you dum-dum!

Origin

1970s: reduplication of dumb.

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