No it is a Japanese skill toy that test your ability to focus and concentrate. People say it's dumb cause either they don't know what it is or the can't even land "big cup"
baka means idiot, and baka na can mean dumb and silly.
baka
you are dumb
You say "Bab-bo".
Stalin
Harnda
pottan
"Tanga"
say what?
how to say "editor" in japanese
Here is the word dumb in hawiian Leo pa'a, mumule.