A stupid person.
idiot, ass, halfwit, nincompoop, blockhead, buffoon, dunce, dolt, ignoramus, cretin, imbecile, dullard, moron, simpleton, clodView synonyms
- ‘Because we are free, people can choose to be dum-dums.’
- ‘‘How can I forget my own daughter's birthday you dum-dum!’’
- ‘Of course I care for her dum-dum, she's my responsibility!’
- ‘Take advantage of him while he's here you dum-dum!’
1970s: reduplication of dumb.