- A stupid person: the dum-dum at the back of the classMore 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!
1970s (originally US): reduplication of dumb.
More definitions of dum-dumDefinition of dum-dum in:
- The US English dictionary