Dictionary.com
Thesaurus.com

sicko

American  
[sik-oh] / ˈsɪk oʊ /

noun

Slang.

plural

sickos
  1. sickie.


sicko British  
/ ˈsɪkəʊ /

noun

  1. a person who is mentally disturbed or perverted

"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

adjective

  1. perverted or in bad taste

    sicko prurience

"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

Usage

What does sicko mean? Sicko is a slang word for someone considered deranged, sadistic, perverted, disturbed, or the like.

Etymology

Origin of sicko

sick 1 + -o

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Cycling through head coaches like Hollywood assistants who can’t perfect a Starbucks order is another symptom of college football’s sicko economy.

From The Wall Street Journal

After retiring, he didn’t stop feeding into being a basketball sicko — his words — or a full-on basketball psycho — his and his peers’ words.

From Los Angeles Times

Even at 39, when James goes into “sicko mode,” as Anthony Davis called it, there’s nothing his opponents can do.

From Los Angeles Times

Infinite Wealth features Sicko Snap, a parody of the video game Pokémon Snap in which the player must give hip-gyrating pests the paparazzi treatment.

From New York Times

Two years after the tragedy, the “Sicko Mode” rapper said, “I always think about it.”

From Los Angeles Times