A self-important person of very little consequence: see esp. the Frank Zappa album "The Grand Wazoo" and the song titled "Cosmik Debris" (I think that spelling is correct).
"... with the oil of Aphrodite
and the dust of the Grand Wazoo
he said,
"you may not believe this, little fella,
but it'll cure your asthma, too!"
-Frank Zappa, from "Cosmik Debris"
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