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Meaning of goofball

goof•ball

Pronunciation: (gf'bôl"), [key]
— n. Slang.
  1. an extremely incompetent, eccentric, or silly person.
  2. a pill containing a barbiturate or a tranquilizing drug.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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