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noun \ˈsi-(ˌ)kō\

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

plural sick·os

Full Definition of SICKO

:  a person who is mentally or morally sick
sicko adjective

Examples of SICKO

  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>

First Known Use of SICKO



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