noun General Slang

J-Cat

· noun · prison

A mentally unstable inmate whose behaviour is wildly unpredictable.

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Definitions

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A prisoner classified as psychiatrically disturbed — the guy who might talk to the wall for an hour then try to bite a guard. The 'J' refers to California Department of Corrections category J, the designation for inmates needing psychiatric housing. You give a J-Cat a wide berth.

“Cell him alone, he's a J-Cat — last week he set fire to his mattress for no reason.”
by community
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J-Cat In A Sentence

Cell him alone, he's a J-Cat — last week he set fire to his mattress for no reason.

Origin & Usage

California prison system. From CDC classification code 'Category J' for mentally disordered inmates, dating to the 1960s–70s.

Variants J CatJCatj-cat

People Also Ask

What does J-Cat mean in prison slang?

It refers to a mentally unstable inmate whose behaviour is wildly unpredictable.

How do you use J-Cat in a sentence?

"Steer clear of the new guy on the tier — word is he's a J-Cat."

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