wacko

[ wak-oh ]
/ ˈwæk oʊ /
Slang.

noun, plural wack·os.

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

adjective


Nearby words

  1. wac,
  2. wace,
  3. wack,
  4. wacke,
  5. wacked-out,
  6. wacky,
  7. wacky tobacky,
  8. waco,
  9. wad,
  10. wad medani

Origin of wacko

1970–75, Americanism; see wacky, -o

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples 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

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for wacko

wacko

n.

extended form of wack, recorded from 1977.

Online Etymology Dictionary, © 2010 Douglas Harper