airhead

A cheerfully uneducated and frivolous person, perfectly happy to remain so.
TV interviews with Hollywood airheads are so boring.
by Alogon March 13, 2009
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crusty

Thick-skinned: deliberately blunt and frank to the point of rudeness, while indifferent to others' reactions.
That man was crusty enough to walk into the house without even knocking at the door.
by Alogon April 29, 2009
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