Definition: Clps (Chronic Psychosis) refers to an episode of severe psychotic symptoms lasting more than three months and associated with mood swings, thoughts of self-harm or suicide, or loss of interest in activities once enjoyed by a patient. Definition: Chronic Psychosis is a complex mental disorder characterized by persistent episodes of intense feelings of agitation, hallucinations (e.g., delusions), disorganized thinking, and behavior changes. It can cause symptoms that are severe enough to interfere with daily life for an entire month or more.