Word.ws English Dictionary

sick-o

sick-o is the alternative form of sicko.

Meaning of sicko

Noun

sicko (plural sickos or sickoes)

  1. (derogatory, slang) A person with unpleasant tastes, views or habits.
    • But in fact, the murders have been committed by an army of sickos, a phalanx of wild-eyed droolers led by a monster goon with a concrete jaw and a Neanderthal brow.1986 June 9, David Denby, Movies: Poison, New York, page 130
    Synonyms:
    weirdo
  2. (derogatory, slang) A mentally ill person.
    • So come on, doc, precisely which kind of sicko is America? You might plump for depressed (isolationist), psychopathic (lack of empathy) or even psychotic (barking mad - what P.G. Wodehouse referred to as "thinking you're a poached egg").2003, Adbusters
  3. A physically ill person.
    • The amazing Mr. Sick Day [Milo Filbum] has missed an amazing 73% of 1,020 work days for such ailments as a toothache, [...] "I finally gave the sicko his walking papers when other people started doing the same thing — calling in sick and all," the manager [said] ...1993, Weekly World News, page 5

See all 4 meanings of sicko

Forms of sick-o

pluralsick-os

Questions about sick-o

What is sick-o the alternative form of?
Sick-o is the alternative form of sicko.

Words near sick-o in the dictionary

  1. sick unto death
  2. sick up
  3. sick-abed
  4. sick-abeds
  5. sick-ass
  6. sick-o
  7. sick-os
  8. sick-out
  9. sick-outs
  10. sick-wagon
  11. sick-wagons

Source and license

Adapted from Wiktionary: sick-o (page history and authors); sicko (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “sick-o.” Word.ws, https://word.ws/sick-o. Based on Wiktionary, CC BY-SA 4.0.