Dums dums is how some people refer to dum dums
How Lili's refer to Dumb-Dumb Pops.

used to point out something is creepy or scary

1) A cute way of calling someone Dumb.
2) A person who's sometime marked by extreme irrationality and superfluous illogicality.
3) A cute way of addressing your loved one.

A term for a wide range of soft ammunition banned either at Geneva or at Hague.
Soft ammunition is considered inhumane because it expands on impact causing horrific wounds. Non-fatal injuries caused by soft ammunition are often untreatable and the victim either dies from infection or from internal bleeding.

A name for someone who is exceedingly dumb, hence the term dum dum

its a cute and condescending name for a dumb person

A person who lacks both intelligence and common sense.
These people are worthless most of the time.

a more brilliant way of saying that something is dumb-ish or someone is. dum-dum is "dumb" only that the b-sound is depleted and the new formed word is repeated twice to accent the state of being.