whacked-out

[hwakt-out, wakt-]

adjective Slang.

tired; exhausted; worn-out.
wacky; crazy.
stupefied or crazed by narcotic drugs or alcohol; stoned.

Origin of whacked-out

First recorded in 1965–70
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019