wacko

[ wak-oh ]
/ ˈwæk oʊ /
Slang.

noun, plural wack·os.

Also wack. an eccentric, strange, or odd person.

adjective

Origin of wacko

1970–75, Americanism; see wacky, -o

Words nearby wacko

Example sentences from the Web for wacko

British Dictionary definitions for wacko

wacko
/ (ˈwækəʊ) informal /

adjective

mad or eccentric

noun plural wackos

a mad or eccentric person

Word Origin for wacko

C20: back formation from wacky