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Meaning of whacked-out

whacked-out

Pronunciation: (hwakt'out', wakt'-), [key]
— adj. Slang.
  1. tired; exhausted; worn-out.
  2. wacky; crazy.
  3. stupefied or crazed by narcotic drugs or alcohol; stoned.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.