Plural of psycho; people who are considered mentally unstable or dangerous, often used informally or as an insult.
From Greek 'psyche' meaning 'soul' or 'mind,' shortened to 'psycho' in early 20th century slang. The suffix '-s' creates the plural form.
This word is a great example of how clinical terms become slang insults—'psyche' was once a serious philosophical concept, but Hollywood and pop culture turned it into an everyday label for anyone acting unpredictably.
Historically gendered slur applied disproportionately to women as 'crazy ex' or 'psycho woman,' weaponizing mental illness diagnosis to dismiss female agency and discredit women's grievances.
Avoid entirely. Use specific clinical or behavioral descriptors ('volatile behavior,' 'threatening conduct') only in professional contexts; otherwise use 'harmful person' or 'someone acting dangerously.'
["person acting dangerously","unstable behavior (clinical context)","harmful conduct"]
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