whacked-out

[hwakt-out, wakt-] /ˈʰwæktˈaʊt, ˈwækt-/
adjective, Slang.
1.
tired; exhausted; worn-out.
2.
wacky; crazy.
3.
stupefied or crazed by narcotic drugs or alcohol; stoned.
Also, wacked-out.
Origin
1965-70