noun
- a person who is mentally disturbed or has twisted ideas
Usage: slang; informal
Examples
- The police described the criminal as a real sicko.
- What kind of sicko would do something like that?
- She called him a sicko for his disturbing comments.
- The movie was about a sicko who stalked innocent people.
- Only a sicko would find that funny.
- The neighbors thought he was a sicko because of his strange behavior.