Skip to main content
wacko

wacko

68 8.9
A person who behaves in a very strange way
  • noun
  • /ˈwækoʊ/
  • Offensive
translation icon : loco
  • My neighbor is a total wacko who believes the moon landing was staged.
  • a bunch of wackos
  • call someone a wacko
  • a real wacko

These wackos at the top, they have ignored you.

Autoplay Next

Examples

  • Being an artist was uncommon enough; she wasn't about to let herself be labeled as wacko, too.

    Fiction book (1999)
  • " We get these people all the time who call with wacko theories."

    Fiction book (1996)
  • How much of a wacko is this guy?

  • And probably every year around this time, he goes a little wacko.

  • Her point is that this is a stranger, and it could have been some wacko that really took things too far.

  • So what you're saying is this guy's a total wacko, right?

    Fiction book (1995)
  • The guy's a wacko!

  • She's in town, like, 2 minutes, and already she's got a job working with a bunch of wackos.

  • Hey, Eddie Mack don't like no wackos on his street.

    Fiction book (2001)
  • See, we Catholics don't have the real wackos, just a few over-the-top complainers who lost an election.

    Blog text (16)

Synonyms

weirdo
vswacko
  • Offensive
119 7.0

A person who acts in a strange or unusual way

implies possible mental instability rather than just odd behaviour
nutcase
vswacko
  • Offensive
52 8.6

A person who behaves very strangely and may be dangerous

focuses on oddness and mental instability rather than danger
crackpot
vswacko
  • Offensive
40 8.2

A person who has strange or unrealistic ideas

focuses on odd or unstable behaviour rather than only strange ideas
kook
vswacko
  • Offensive
35 8.8

A person who behaves in a very strange or wild way

is less extreme in oddness and can imply milder instability
whacko
vswacko
  • Offensive
14 9.7

A person who behaves in strange or silly ways

has the same meaning and the same informal negative tone
nutbag
vswacko
  • Offensive
4 8.6

A person who acts in a silly or strange way

stresses mental instability or odd behaviour rather than playful silliness
wacker
vswacko
  • Offensive
3 9.9

A person who acts foolishly or oddly

highlights mental instability or oddness rather than mere foolishness
total nutcase
vswacko
  • Offensive
1 8.8

A person who acts in a way that seems crazy

is less extreme describing odd or unstable behaviour without the intensifier
total whackjob
vswacko
  • Offensive
9.9

A person who behaves in a very strange and unreasonable way that worries others

is milder referring to odd or unstable behaviour not total insanity
whangdoodle
vswacko
  • Archaic
9.9

A person who acts in a silly, playful way

refers to odd or possibly unstable behaviour not playful silliness

Antonyms

1.0

Usual or expected in most situations

119 3.2

Having a healthy mind and able to think clearly

Compounds

Wacko Jacko
  • Offensive
9.9

A rude nickname for the singer Michael Jackson

How Crazy

lunatic
  • Slur
153 9.8
maniac
  • Offensive
149 8.1
wacko
  • Offensive
68 8.9
weirdo
  • Offensive
119 7.0
oddball
  • Offensive
21 7.2

Surface Forms

wacko singular
wackos plural

Morphology

wacko = wack (transparent) = wack + o

Formed colloquially by adding the informal suffix '-o' to the slang stem 'wack', producing a word meaning a crazy or eccentric person.

Etymology

Wacko comes from the informal word wacky, which means 'crazy' or 'strange', plus the slang ending -o. So a wacko is someone seen as 'crazy' or odd, which matches how we use the noun today.