Might I humbly suggest we call them "fartweasels"?
I like the term "fartweasel" as, just as we all occassionally fart, some folks can occassionally be a weasel. Understand? Hence we have the term "fartweasels"!
We all personally know many such folks. They can be family, friends, coworkers, the bus driver, the plumber, the guy who mows your lawn, the cashier at the supermarket, your insurance agent or bank representative, your professor, the little old lady walking the twin chihuahuas... maybe YOU are one (a fartweasel, not a chihuahua)... these folks are everywhere.
But though they demonstrate occassional intellectual deficiencies, they still don't fall into the same category as such infamous, screeching moonbats as Cindy Sheehan, Howard Dean, Michael Moore, Carolyn Parrish, Svend Robinson, Ward Churchill, etc...
On the other hand, maybe I'm just warming up, having a little fun before getting into the more important, serious matters facing us all...
Oops... excuse me... oh, pee-yew! I just... oh, never mind! Heh...