Are you asking in regards to canon names or do you want us to come up with something?

Both

Tahu

Dumbest canon name is "Gadunka."

Hero Factory.

Teridax.

Firedracax is another option.

Nothing can top Mukau.

~Unit#phntk#1

So long as we're talking "so dumb it's good", I wholeheartedly second Mukau.  Heck, I'll even put Kalmah in there, since he's basically asking to be turned into calamari.

As for making something up, I propose ELCINOIB.  I don't know who they are.  Probably a Great Being or something.

Gadunka is another so bad it's good name. It's no wonder he became a meme.

So long as we're talking "so dumb it's good", I wholeheartedly second Mukau.  Heck, I'll even put Kalmah in there, since he's basically asking to be turned into calamari.

All the Barraki were seemingly destined to be turned into their spirit animal, with the possible exception of Pridak (though that could be another Chirox case, where it's based off a scientific classification instead. Can anyone help me out with this?)