sicko

noun \ ˈsi-(ˌ)kō \

Definition of sicko

plural sickos
:a person who is mentally or morally sick

sicko

adjective

Examples of sicko in a Sentence

  1. She was afraid to walk alone for fear some sicko might be lurking in the shadows.

  2. some sicko kidnapped and murdered as many as a dozen young women

Recent Examples of sicko from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'sicko.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of sicko

1963


SICKO Defined for English Language Learners

sicko

noun

Definition of sicko for English Language Learners

  • : a person who does disturbing things that a person who is mentally normal would not do


Learn More about sicko


Seen and Heard

What made you want to look up sicko? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

money or riches

Get Word of the Day daily email!

Test Your Vocabulary

The Exceptions Quiz III

  • one-green-toy-robot-amidst-many-red-toy-robots
  • Which of these words does not mean "nonsense"?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!